Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + 2*(k+1)!*Sum_{j=0..k} A(n-1,j)/j! with A(0,k) = 1, n >= 0, k >= 0.
A379458
Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + 2*(k+1)!*Sum_{j=0..k} A(n-1,j)/j! with A(0,k) = 1, n >= 0, k >= 0.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =9a(5) =15a(6) =1a(7) =31a(8) =79a(9) =109a(10) =1a(11) =129a(12) =459a(13) =835a(14) =1053a(15) =1a(16) =651a(17) =3003a(18) =6885a(19) =10661a(20) =12767a(21) =1a(22) =3913a(23) =22183a(24) =61735a(25) =114373a(26) =161229a(27) =186763a(28) =1a(29) =27399
External references
- oeis: A379458