89180

Appears in sequences

• a(n) = Product_{k=1..n} (49 - 7/k).at n=3A216703
• Square array read by antidiagonals downwards: super Patalan numbers of order 7.at n=9A248329
• Convolution of nonzero heptagonal numbers (A000566) with themselves.at n=12A272103
• Number T(n,k) of modified skew Dyck paths of semilength n with exactly k anti-down steps; triangle T(n,k), n>=0, 0<=k<=n-floor((1+sqrt(max(0,8n-7)))/2), read by rows.at n=47A274404
• Number of distinct products i*j*k*l*m for 1 <= i <= j <= k <= l <= m <= n.at n=38A284988
• a(n) = n*(1 - (-1)^n - 2*(3 + (-1)^n)*n^2 + 2*n^4)/384.at n=28A350689