Row sums of triangle A104990, which equals the matrix cube of triangle A104980.
A104991
Row sums of triangle A104990, which equals the matrix cube of triangle A104980.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =142a(4) =1048a(5) =8704a(6) =80386a(7) =817786a(8) =9093340a(9) =109794556a(10) =1431360958a(11) =20047830262a(12) =300343272952
External references
- oeis: A104991