a(0) = a(1) = 1; thereafter a(n) = (2*n-3)*a(n-1) + a(n-2).
A144301
a(0) = a(1) = 1; thereafter a(n) = (2*n-3)*a(n-1) + a(n-2).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =37a(5) =266a(6) =2431a(7) =27007a(8) =353522a(9) =5329837a(10) =90960751a(11) =1733584106a(12) =36496226977a(13) =841146804577
External references
- oeis: A144301