63028
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) is the number of deco polyominoes of height n and having k columns of even length (0 <= k < n). A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column.at n=52A121748
- a(n) = Sum_{k=0..floor(n/2)} C(n-k,k)^4.at n=8A181546
- Discriminants of totally real cubic fields with 3 associated nonconjugate fields.at n=10A329787