E.g.f.: Log( Sum_{n>=0} (n + y)^(2*n) * x^n/n! ) = Sum_{n>=1} Sum_{k=0..n+1} T(n,k) * x^n*y^k/n!, as a triangle of coefficients T(n,k) read by rows.
A266521
E.g.f.: Log( Sum_{n>=0} (n + y)^(2*n) * x^n/n! ) = Sum_{n>=1} Sum_{k=0..n+1} T(n,k) * x^n*y^k/n!, as a triangle of coefficients T(n,k) read by rows.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =15a(4) =28a(5) =18a(6) =4a(7) =683a(8) =1278a(9) =933a(10) =316a(11) =42a(12) =62038a(13) =117440a(14) =92680a(15) =38240a(16) =8272a(17) =752a(18) =9342629a(19) =17880090a(20) =14855385a(21) =6881640a(22) =1880340a(23) =288048a(24) =19360a(25) =2100483216a(26) =4054752672a(27) =3490688496a(28) =1743156480a(29) =547098240
External references
- oeis: A266521