Sequences

Powers of fifth root of 16 rounded up.

Powers of fifth root of 17 rounded down.

Powers of fifth root of 17 rounded to nearest integer.

Powers of fifth root of 17 rounded up.

Powers of fifth root of 18 rounded down.

Powers of fifth root of 18 rounded to nearest integer.

Powers of fifth root of 18 rounded up.

Powers of fifth root of 19 rounded down.

Powers of fifth root of 19 rounded to nearest integer.

Powers of fifth root of 19 rounded up.

Powers of fifth root of 20 rounded down.

Powers of fifth root of 20 rounded to nearest integer.

Powers of fifth root of 20 rounded up.

Powers of fifth root of 21 rounded down.

Powers of fifth root of 21 rounded to nearest integer.

Powers of fifth root of 21 rounded up.

Powers of fifth root of 22 rounded down.

Powers of fifth root of 22 rounded to nearest integer.

Powers of fifth root of 22 rounded up.

Powers of fifth root of 23 rounded down.

Powers of fifth root of 23 rounded to nearest integer.

Powers of fifth root of 23 rounded up.

Powers of fifth root of 24 rounded down.

Powers of fifth root of 24 rounded to nearest integer.

Powers of fifth root of 24 rounded up.

a(n+2) = 3*a(n) - a(n-2) with a(0) = 1, a(1) = 3, a(2) = 6.

Restricted Perrin pseudoprimes.

The $620 prime list.

Population of "Triangle" cellular automaton at n-th generation.

Number of planar simply-connected polyhexes (or benzenoid hydrocarbons) with n hexagons.

a(n) = Sum_{k=0..n} binomial(n, k) * k! / floor(k/2)!.

Number of chord diagrams of degree n with an isolated chord.

Number of chord diagrams of degree n with an isolated chord of length 1.

Number of steps for S(S(..S(n)..)) to converge, where S is the Kempner function A002034.

Possible numbers of complements of topologies on 4 points.

Possible numbers of complements of topologies on 5 points.

Possible numbers of complements of topologies on 6 points.

Possible numbers of complements of topologies on 7 points.

Possible numbers of complements of topologies on 8 points.

Possible numbers of complements of topologies on 9 points.

Possible numbers of complements of topologies on 10 points.

Possible numbers of complements of topologies on 11 points.

Possible numbers of complements of topologies on 12 points.

Possible numbers of complements of topologies on 13 points.

Let m=n+1; a(n) is the least positive integer s, not a multiple of m, such that if 1<=d<=m and (d,m)=1, then d divides one of the numbers s-m, s-2m, ..., s-m[ s/m ].

Expansion of 1/((1-3x)(1-10x)(1-11x)).

Expansion of 1/((1-3x)(1-10x)(1-12x)).

Expansion of 1/((1-3x)(1-11x)(1-12x)).

Expansion of 1/((1-4x)(1-5x)(1-7x)).

Alkane (or paraffin) numbers l(9,n).