Column 2 of table A125860; also equals row sums of matrix power A097712^2.
A125862
Column 2 of table A125860; also equals row sums of matrix power A097712^2.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =69a(4) =612a(5) =8853a(6) =217041a(7) =9245253a(8) =695682342a(9) =93580638024
External references
- oeis: A125862