Triangle in which the g.f. for row n is (1-x)^(4*n+1) * Sum_{j>=0} binomial(n+j-1,j)^4 * x^j, read by rows of k=0..3*n terms.
A262014
Triangle in which the g.f. for row n is (1-x)^(4*n+1) * Sum_{j>=0} binomial(n+j-1,j)^4 * x^j, read by rows of k=0..3*n terms.
Terms
- a(0) =1a(1) =1a(2) =11a(3) =11a(4) =1a(5) =1a(6) =72a(7) =603a(8) =1168a(9) =603a(10) =72a(11) =1a(12) =1a(13) =243a(14) =6750a(15) =49682a(16) =128124a(17) =128124a(18) =49682a(19) =6750a(20) =243a(21) =1a(22) =1a(23) =608a(24) =40136a(25) =724320a(26) =4961755a(27) =15018688a(28) =21571984a(29) =15018688
External references
- oeis: A262014