p(1,n), where the polynomial p(n,x) is defined in Comments; sum of the numbers in row n of the triangular array at A249130.
A249131
p(1,n), where the polynomial p(n,x) is defined in Comments; sum of the numbers in row n of the triangular array at A249130.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =17a(4) =37a(5) =139a(6) =361a(7) =1473a(8) =4361a(9) =19091a(10) =62701a(11) =291793a(12) =1044205a(13) =5129307a(14) =19748177a(15) =101817089a(16) =417787921a(17) =2250495523a(18) =9770678101a(19) =54780588561a(20) =250194150581
External references
- oeis: A249131