263175

Appears in sequences

• a(n) = (n+1)*(n+2)^3*(n+3)^2*(n+4)*(3n+5)/1440.at n=8A107968
• 1/9 the number of (n+1) X 3 0..2 arrays with all 2 X 2 subblocks having the same four values.at n=16A184041
• Triangular numbers representable as b! + c^2.at n=44A230364
• Triangular numbers that are the sum of two distinct nonzero triangular numbers in exactly two ways.at n=29A350368