A higher order recursion triangle sequence: m=3;l=3;e(n,k,m)=(l*k + m - 1)e(n - 1, k, m) + (m*n - l*k + 1 - m)e(n - 1, k - 1, m).
A156278
A higher order recursion triangle sequence: m=3;l=3;e(n,k,m)=(l*k + m - 1)e(n - 1, k, m) + (m*n - l*k + 1 - m)e(n - 1, k - 1, m).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =1a(6) =1a(7) =52a(8) =44a(9) =1a(10) =1a(11) =270a(12) =716a(13) =187a(14) =1a(15) =1a(16) =1363a(17) =8428a(18) =7069a(19) =762a(20) =1a(21) =1a(22) =6831a(23) =85143a(24) =162039a(25) =60151a(26) =3065a(27) =1a(28) =1a(29) =34174
External references
- oeis: A156278