Sequences

Sums of 10 distinct powers of 2.

Sums of 11 distinct powers of 2.

Sums of 12 distinct powers of 2.

Sums of 2 distinct powers of 3.

Sums of 3 distinct powers of 3.

Sums of 4 distinct powers of 3.

Sums of 5 distinct powers of 3.

Sums of 6 distinct powers of 3.

Sums of 7 distinct powers of 3.

Sums of 2 distinct powers of 4.

Sums of 3 distinct powers of 4.

Sums of 4 distinct powers of 4.

Sums of 5 distinct powers of 4.

Sums of two distinct powers of 5.

Sums of 3 distinct powers of 5.

Sums of 4 distinct powers of 5.

Sums of 5 distinct powers of 5.

Sums of 2 distinct powers of 6.

Sums of 3 distinct powers of 6.

Sums of 4 distinct powers of 6.

Sums of 2 distinct powers of 7.

Sums of 3 distinct powers of 7.

Sums of 4 distinct powers of 7.

Sums of 2 distinct powers of 8.

Sums of 3 distinct powers of 8.

Sums of 4 distinct powers of 8.

Sums of two distinct powers of 9.

Sums of 3 distinct powers of 9.

Sums of 4 distinct powers of 9.

Sums of 2 distinct powers of 11.

Sums of 3 distinct powers of 11.

Sums of 2 distinct powers of 12.

Sums of 3 distinct powers of 12.

Images of hexamorphic numbers: suppose k-th hexagonal number H(k) (A000384) ends in k; sequence gives positive values of H(k).

Duplicate of A007059.

Number of self-avoiding paths with diagonal steps from corner to opposite corner of n X n grid.

Matrix square of partition triangle A008284.

Matrix inverse of partition triangle A008284.

Number of partitions of n into a prime number of parts.

Highest power of 3 dividing n.

Upper bound on minimal norm of a quadratic form where n runs over the odd primes.

Remove 3's from n.

Sum of every 4th entry of row n in Pascal's triangle, starting at "n choose 0".

Sum of every 4th entry of row n in Pascal's triangle, starting at "n choose 1".

Sum of every 4th entry of row n in Pascal's triangle, starting at binomial(n,2).

Floor of decimal expansion of n read as if it were "base e".

a(n) = n! + 1.

Expansion of (1-2*x-x^2)/((1-2*x)*(1-2*x+2*x^2)).

Composite numbers congruent to +-1 mod 6.

Composite numbers with smallest prime factor >= 7.