7770342787
domain: N
Appears in sequences
- From area of cyclic polygon of 2n + 1 sides.at n=15A000531
- a(n) = (n/2)*binomial(n-1, floor((n-1)/2)) - 2^(n-2).at n=32A107373
- a(n) = 2^(2*n - HammingWeight(n)) * [x^n] ((x-1)^(-1) + (1-x)^(-3/2)).at n=16A173384
- a(n) = (-1)^n*(A056040(n+1)*A152271(n)-2^n)/2.at n=32A194590
- Row sums of A296664.at n=31A296663
- Row sums of A296662.at n=15A296769