7577955

Appears in sequences

• Sextuple factorial numbers: a(n) = Product_{k=0..n-1} (6*k+3).at n=6A011781
• a(n) = (n+1)*(n+2)*(n+3)*(n+12)*3^n/72.at n=9A080422
• Sextuple factorials, 6-factorials, n!!!!!!, n!6.at n=33A085158
• Denominators of partial sums of series for 3*arctanh(1/3) = (3/2)*log(2).at n=5A096950
• Triangle T(n, k) = Product_{j=0..k} (j*n + prime(m)), with T(n, 0) = prime(m) and m = 2, read by rows.at n=26A153270
• Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. 1/sqrt(1 - 2*k*x).at n=51A292783