Triangle W, read by rows, where column k of W = column 0 of W^(k+1) for k>=0 such that W equals the matrix cube of P = A136220 with column 0 of W = column 0 of P shift up one row.
A136231
Triangle W, read by rows, where column k of W = column 0 of W^(k+1) for k>=0 such that W equals the matrix cube of P = A136220 with column 0 of W = column 0 of P shift up one row.
Terms
- a(0) =1a(1) =3a(2) =1a(3) =15a(4) =6a(5) =1a(6) =108a(7) =48a(8) =9a(9) =1a(10) =1036a(11) =495a(12) =99a(13) =12a(14) =1a(15) =12569a(16) =6338a(17) =1323a(18) =168a(19) =15a(20) =1a(21) =185704a(22) =97681a(23) =21036a(24) =2754a(25) =255a(26) =18a(27) =1a(28) =3247546a(29) =1767845
External references
- oeis: A136231