131077
domain: N
Appears in sequences
- Number of nonempty subsets of the set of vertices of a regular n-gon in the plane such that their center of gravity is the center of the polygon.at n=49A070894
- (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes (1^2+3, 2^2+5, 2^3+7, 2^3+3, 2^2+5, 11^2+2, 3^13+2, 7^3+5,..).at n=20A143709
- Sums of three Fermat numbers.at n=30A155877
- a(n) = 2^n + 5.at n=17A168614
- Sums of three Mersenne primes.at n=35A174055
- 2^p + 5 where p is prime.at n=6A241677
- a(n) = 4*n^3 + 5.at n=33A243762
- Numbers a(n) which are the minimum number of moves needed in a variation of the tower of Hanoi with 4 towers and n disks.at n=18A248604
- Numerator of (0 followed by A005126(n)= 2, 4, 7, ...)/2^n.at n=20A271573
- Bitmaps of king + rook vs. king checkmate patterns on a standard 8 X 8 board.at n=8A362950