Lower triangular matrix T with first column and diagonal (1,2,3,4,...,n,...) and otherwise satisfying T(i,j) = Sum_{k=1..j} T(i-j+1,k)*T(j,k), read by rows.
A135835
Lower triangular matrix T with first column and diagonal (1,2,3,4,...,n,...) and otherwise satisfying T(i,j) = Sum_{k=1..j} T(i-j+1,k)*T(j,k), read by rows.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =8a(5) =3a(6) =4a(7) =22a(8) =22a(9) =4a(10) =5a(11) =52a(12) =82a(13) =52a(14) =5a(15) =6a(16) =114a(17) =254a(18) =254a(19) =114a(20) =6a(21) =7a(22) =240a(23) =677a(24) =1000a(25) =677a(26) =240a(27) =7a(28) =8a(29) =494
External references
- oeis: A135835