27994
domain: N
Appears in sequences
- Numbers whose base-5 representation contains exactly three 3's and three 4's.at n=25A045307
- a(n) = 15*n^2 + 6*n + 1.at n=43A080861
- a(n) = number of terms in s(n), where s(n) is defined in A096055.at n=14A112306
- 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, 1, 0), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.at n=8A150401
- a(n) = (2/5)*(9*6^(n-2)+1).at n=6A261399
- Composite numbers k such that phi(x) = psi(k)*phi(k) has no solution.at n=26A292714
- Number of binary words w of length n such that the number of distinct blocks of length k that w contains is <= k+2 for all k.at n=35A297526
- T(m,n) = Number of m X n knot/link mosaics read by rows, with 1<=n<=m.at n=23A375353