19246
domain: N
Appears in sequences
- G.f.: A(x) = ...o x/(1-x^8) o x/(1-x^4) o x/(1-x^2) o x/(1-x), composition of functions x/(1 - x^{2^n}) for n=...,3,2,1,0.at n=12A136753
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 1, -1), (1, -1, -1), (1, 0, 0)}.at n=11A148082
- Numbers k such that 2^k + 27 is prime.at n=37A157007
- Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) - m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.at n=40A157152
- Bases with a record -- new or tie -- smallest 'stem value' for which a prime by concatenation of decrements exists.at n=25A220402
- Number of multisets of nonempty words with a total of n letters over octonary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=10A293738
- Partial sums of A299900.at n=33A299901
- Total number of parts in all plane partitions of n.at n=13A319648