39698
domain: N
Appears in sequences
- a(n) = A027082(n, 2n-7).at n=9A027094
- a(n) = n*(3*n^2 + 6*n + 1).at n=23A196507
- Number of meanders of length n.at n=15A199932
- Number of arrays of median of three adjacent elements of some length 7 0..n array, with no adjacent equal elements in the latter.at n=8A229015
- Coefficients of g.f. for the class of C-trees.at n=7A280767
- a(n) = a(n-1) + a(n-2) + a([n/2]) + a([n/3]) + ... + a([n/n]), where a(0) = 1, a(1) = 2, a(2) = 3.at n=18A298357
- Centered heptagonal numbers which are sphenic numbers.at n=12A360183