78385
domain: N
Appears in sequences
- Number of -7..7 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern).at n=12A200180
- G.f.: Sum_{n>=0} (n+1)*(n+2)/2 * x^n * (1 + x^n)^n.at n=69A326003
- T(n,k) is the number of connected unlabeled posets with n elements and rank k: triangle read by rows.at n=39A342500