Row sums of triangle A105556, in which column n equals the row sums of A001263^n, which is the n-th matrix power of the Narayana triangle A001263.
A105557
Row sums of triangle A105556, in which column n equals the row sums of A001263^n, which is the n-th matrix power of the Narayana triangle A001263.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =32a(5) =128a(6) =626a(7) =3681a(8) =25574a(9) =206402a(10) =1908996a(11) =20024149a(12) =236142157a(13) =3106393358a(14) =45265833590a(15) =726249472784
External references
- oeis: A105557