Column 4 of table A125860; also equals row sums of matrix power A097712^4.
A125864
Column 4 of table A125860; also equals row sums of matrix power A097712^4.
Terms
- a(0) =1a(1) =5a(2) =35a(3) =365a(4) =5990a(5) =161525a(6) =7387640a(7) =586285040a(8) =82090572095
External references
- oeis: A125864