640080

Appears in sequences

• Expansion of theta series of E_7 lattice in powers of q^2.at n=30A004008
• a(n) = (2^n - 1)*n!.at n=7A052589
• Weight distribution of [127,36,31] primitive binary BCH code.at n=39A151813
• Triangle T(n, k, m) = f(n, m)/(f(k, m)*f(n-k, m)), where T(0, k, m) = 1, f(n, k) = Product_{j=1..n} ( j!*((k+1)^j -1)/k ), f(n, 0) = n!, and m = 1, read by rows.at n=29A156765
• Triangle T(n, k, m) = f(n, m)/(f(k, m)*f(n-k, m)), where T(0, k, m) = 1, f(n, k) = Product_{j=1..n} ( j!*((k+1)^j -1)/k ), f(n, 0) = n!, and m = 1, read by rows.at n=34A156765
• Number of closed paths of length n whose steps are 9th roots of unity, U_9(n).at n=9A198810
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=7A207452
• Numbers k such that A380845(k)/k > A380845(m)/m for all m < k.at n=25A381070