Row sums of triangle A111845, which shifts columns left and up under matrix 4th power.
A111847
Row sums of triangle A111845, which shifts columns left and up under matrix 4th power.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =97a(4) =2689a(5) =214017a(6) =53130241a(7) =43283609601
External references
- oeis: A111847