281736
domain: N
Appears in sequences
- Expansion of theta series of E_7 lattice in powers of q^2.at n=22A004008
- Define an array by d(m, 0) = 1, d(m, 1) = m; d(m, k) = (m - k + 1) d(m+1, k-1) - (k-1) (m+1) d(m+2, k-2). Sequence gives d(n,4).at n=25A126958
- Bisection of A138546.at n=5A136045
- Moment sequence of tr(A^4) in USp(6).at n=10A138544
- Moment sequence of tr(A^5) in USp(6).at n=10A138546
- Number of squarefree words of length 6 in an (n+1)-ary alphabet.at n=7A214945
- G.f. A(x) satisfies A(x) = 1 / ((1 - x) * (1 - x * A(x^4))).at n=30A367692