173173
domain: N
Appears in sequences
- Number of bracelets (turnover necklaces) of n beads of 2 colors, 9 of them black.at n=20A032281
- Lucky numbers that are concatenations of a number k with itself.at n=22A032650
- Number of columns in all directed column-convex polyominoes of area n+1.at n=11A038731
- Row sums of triangle A134511.at n=22A134512
- p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - S^2 + S^3.at n=22A291241