Triangle, read by rows, where T(n,k) equals the sum of (n-k) terms in row n of triangle A131338 starting at position nk - k(k-1)/2, with the main diagonal formed from the row sums.
A183202
Triangle, read by rows, where T(n,k) equals the sum of (n-k) terms in row n of triangle A131338 starting at position nk - k(k-1)/2, with the main diagonal formed from the row sums.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =2a(6) =3a(7) =3a(8) =3a(9) =5a(10) =4a(11) =6a(12) =10a(13) =9a(14) =14a(15) =5a(16) =10a(17) =22a(18) =34a(19) =29a(20) =43a(21) =6a(22) =15a(23) =40a(24) =84a(25) =122a(26) =100a(27) =143a(28) =7a(29) =21
External references
- oeis: A183202