146028888064
domain: N
Appears in sequences
- Generalized tangent numbers d_(n,4).at n=15A000518
- a(n) = n*2^(2*n-1).at n=17A002699
- Hadamard maximal determinant problem: largest determinant of (+1,-1)-matrix of order n.at n=17A003433
- 3-fold convolution of A000302 (powers of 4).at n=15A038845
- Denominators in the Taylor series for arccosh(x) - log(2*x).at n=16A052469
- Square array read by ascending antidiagonals: T(n,k) = [x^(3*k)] ( (1 + x)^(n+3)/(1 - x)^(n-3) )^k for n, k >= 0.at n=50A364519
- a(n) = (7*n)!*(n/2)!/((7*n/2)!*(n)!*(3*n)!).at n=5A364520