26550

Appears in sequences

• Numbers having four 6's in base 8.at n=9A043448
• Number of increasing rooted trees with a forbidden limb of length 3.at n=9A052324
• Numbers k such that 295*2^k + 1 is prime.at n=28A053364
• Number of lattice paths in the lattice [0..2n] X [0..2n] X [0..2n] which do not pass through the point (n,n,n). Number of paths through a lattice containing a "hole".at n=1A071800
• Number of paths in the lattice [0..n] X [0..n] X [0..n] which do not pass through the point (floor(n/2), floor(n/2), floor(n/2)). Number of paths through a lattice containing a "hole".at n=2A071803
• Integer averages of halves of first cubes of natural numbers (n^3)/2 for some n.at n=21A164579
• Smallest number k such that k^n is the sum of numbers in a twin prime pair.at n=45A195336
• Triangle read by rows, k!*S_3(n, k) where S_m(n, k) are the Stirling-Frobenius subset numbers of order m; n >= 0, k >= 0.at n=17A225472
• Rhonda numbers in sexagesimal number system.at n=10A255731
• Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. exp(k*x)*BesselI(1,2*x).at n=72A292628
• Numbers that are not Keith numbers in any base.at n=35A320122
• Numbers that can be written as (k + sum of digits of k) for some k, then as (m + product of digits of m) for some m, also as (q * product of digits of q) for some q, and finally as (t * sum of digits of t) for some t.at n=35A337839
• a(n) = Sum_{k=0..n} 3^(n-k) * binomial(n+1,k+1) * binomial(2*k+2,k+2).at n=5A387278