264241152
domain: N
Appears in sequences
- A hierarchical sequence (S(W'2{3}*c) - see A059126).at n=20A059162
- Maximal number of divisors of any n-digit number.at n=37A066150
- Triangle T, read by rows, where matrix power T^-2 has -2^(n+1) in the secondary diagonal: [T^-2](n+1,n) = -2^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=39A117265
- First differences of Mersenne numbers A001348, divided by 2.at n=8A139239
- a(n) = (2^n-1)*4^(2*n-1).at n=6A163839
- a(n) = A257851(n,n).at n=22A264959
- Number of simple labeled graphs on n vertices that have at least one vertex of odd degree and at least one vertex of even degree.at n=7A275334