Main diagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1)+T(j,k-1) for 2 <= k <= j.
A129961
Main diagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1)+T(j,k-1) for 2 <= k <= j.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =8a(4) =15a(5) =26a(6) =42a(7) =64a(8) =94a(9) =140a(10) =232a(11) =464a(12) =1092a(13) =2744a(14) =6840a(15) =16384a(16) =37384a(17) =81296a(18) =169120a(19) =338240a(20) =654192a(21) =1232288a(22) =2280864a(23) =4194304a(24) =7761376a(25) =14635712a(26) =28384384a(27) =56768768a(28) =116566080a(29) =243472256
External references
- oeis: A129961