Triangle with first column identical to 1 and the other entries defined by the sum of entries above and to the left.

A226392

Triangle with first column identical to 1 and the other entries defined by the sum of entries above and to the left.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =3a(6) =1a(7) =4a(8) =8a(9) =13a(10) =1a(11) =8a(12) =20a(13) =42a(14) =71a(15) =1a(16) =16a(17) =48a(18) =120a(19) =256a(20) =441a(21) =1a(22) =32a(23) =112a(24) =320a(25) =792a(26) =1698a(27) =2955a(28) =1a(29) =64

External references