3775200

Appears in sequences

• a(n) = binomial(n+4,n)*binomial(n+9,n).at n=7A104672
• a(n) = binomial(n+7,7)*binomial(n+12,7).at n=4A104680
• a(n) = binomial(3+2*n, n) * binomial(8+2*n, 3+n).at n=4A114059
• Number of (binary) heaps with element set [n] and length n+1.at n=12A373496