Row 4 of table A124550; also equals the self-convolution 4th power of A124564, which is row 4 of table A124560.
A124554
Row 4 of table A124550; also equals the self-convolution 4th power of A124564, which is row 4 of table A124560.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =204a(4) =1899a(5) =21180a(6) =287568a(7) =4802716a(8) =99084889a(9) =2531896840a(10) =80346294380
External references
- oeis: A124554