Triangle T, read by rows, equal to the matrix square of triangle A117418; also equals a column bisection of triangle A117418: column 2k+1 of T^(1/2) equals column k of T.
A117427
Triangle T, read by rows, equal to the matrix square of triangle A117418; also equals a column bisection of triangle A117418: column 2k+1 of T^(1/2) equals column k of T.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =4a(4) =4a(5) =1a(6) =9a(7) =14a(8) =6a(9) =1a(10) =23a(11) =50a(12) =28a(13) =8a(14) =1a(15) =66a(16) =191a(17) =126a(18) =48a(19) =10a(20) =1a(21) =209a(22) =780a(23) =572a(24) =264a(25) =70a(26) =12a(27) =1a(28) =724a(29) =3415
External references
- oeis: A117427