Triangle read by rows, antidiagonals of an array (r,k), r=(0,1,2,...), generated from 2 X 2 matrices of the form [1,r; 1,(r+1)].
A179943
Triangle read by rows, antidiagonals of an array (r,k), r=(0,1,2,...), generated from 2 X 2 matrices of the form [1,r; 1,(r+1)].
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =3a(5) =3a(6) =1a(7) =4a(8) =8a(9) =4a(10) =1a(11) =5a(12) =15a(13) =21a(14) =5a(15) =1a(16) =6a(17) =24a(18) =56a(19) =55a(20) =6a(21) =1a(22) =7a(23) =35a(24) =115a(25) =209a(26) =144a(27) =7a(28) =1a(29) =8
External references
- oeis: A179943