Triangle read by rows: coefficients of the polynomial (Sum_{i=0..k} (Product_{j=0..i} (x+j)))/(x*(x+2)).
A270250
Triangle read by rows: coefficients of the polynomial (Sum_{i=0..k} (Product_{j=0..i} (x+j)))/(x*(x+2)).
Terms
- a(0) =1a(1) =2a(2) =1a(3) =5a(4) =5a(5) =1a(6) =17a(7) =24a(8) =9a(9) =1a(10) =77a(11) =131a(12) =68a(13) =14a(14) =1a(15) =437a(16) =833a(17) =529a(18) =151a(19) =20a(20) =1a(21) =2957a(22) =6107a(23) =4458a(24) =1571a(25) =290a(26) =27a(27) =1a(28) =23117a(29) =50819
External references
- oeis: A270250