Triangle read by rows, iterates of matrix X * [1,0,0,0,...], where X = an infinite lower bidiagonal matrix with [1,3,1,3,1,3,...] in the main diagonal and [1,1,1,...] in the subdiagonal.
A140070
Triangle read by rows, iterates of matrix X * [1,0,0,0,...], where X = an infinite lower bidiagonal matrix with [1,3,1,3,1,3,...] in the main diagonal and [1,1,1,...] in the subdiagonal.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =13a(8) =5a(9) =1a(10) =1a(11) =40a(12) =18a(13) =8a(14) =1a(15) =1a(16) =121a(17) =58a(18) =42a(19) =9a(20) =1a(21) =1a(22) =364a(23) =179a(24) =184a(25) =51a(26) =12a(27) =1a(28) =1a(29) =1093
External references
- oeis: A140070