The r-th term of the n-th row of the following triangle is C[{T(n)-T(r-1)},r] where T(n) is the n-th triangular number. 1 3 1 6 10 1 10 36 35 1 ... Sequence contains the row sums.
A110771
The r-th term of the n-th row of the following triangle is C[{T(n)-T(r-1)},r] where T(n) is the n-th triangular number. 1 3 1 6 10 1 10 36 35 1 ... Sequence contains the row sums.
Terms
- a(0) =1a(1) =4a(2) =17a(3) =82a(4) =453a(5) =2855a(6) =20279a(7) =159972a(8) =1383544a(9) =12987671a(10) =131301747a(11) =1420538383a(12) =16358806638a(13) =199606632428
External references
- oeis: A110771