62349
domain: N
Appears in sequences
- Number of distributive lattices; also number of paths with n turns when light is reflected from 9 glass plates.at n=6A030113
- a(n) = (n+1)*(n+2)*(61*n^4 + 366*n^3 + 845*n^2 + 888*n + 360)/720.at n=8A108675
- Number of nX7 0..1 arrays with no element equal to more than two of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.at n=7A280603