841464

Appears in sequences

• a(n) = binomial(n+4,4)*(4*n+5)/5.at n=28A034263
• a(n) = lcm(n,n+1,n+2,n+3,n+4,n+5,n+6)/420.at n=26A189144
• The number of binary pattern classes in the (2,n)-rectangular grid with 7 '1's and (2n-7) '0's: two patterns are in same class if one of them can be obtained by a reflection or 180-degree rotation of the other.at n=16A228582