Triangle T(n,k) read by rows: T(n,k) is the coefficient of x^k of the monic polynomial (1+x)^n + ((2*(1+x))^n - (2+x)^n) / x.
A391610
Triangle T(n,k) read by rows: T(n,k) is the coefficient of x^k of the monic polynomial (1+x)^n + ((2*(1+x))^n - (2+x)^n) / x.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =5a(4) =5a(5) =1a(6) =13a(7) =21a(8) =10a(9) =1a(10) =33a(11) =76a(12) =62a(13) =19a(14) =1a(15) =81a(16) =245a(17) =290a(18) =160a(19) =36a(20) =1a(21) =193a(22) =726a(23) =1135a(24) =920a(25) =387a(26) =69a(27) =1a(28) =449a(29) =2023
External references
- oeis: A391610