Square array A(n,k) = A(n-1,k) + A(n-1, floor(k/2)) + A(n-1, floor(k/3)), with A(0,0) = 1, read by antidiagonals.

A061980

Square array A(n,k) = A(n-1,k) + A(n-1, floor(k/2)) + A(n-1, floor(k/3)), with A(0,0) = 1, read by antidiagonals.

Terms

    a(0) =1a(1) =0a(2) =3a(3) =0a(4) =2a(5) =9a(6) =0a(7) =1a(8) =8a(9) =27a(10) =0a(11) =0a(12) =6a(13) =26a(14) =81a(15) =0a(16) =0a(17) =4a(18) =23a(19) =80a(20) =243a(21) =0a(22) =0a(23) =3a(24) =20a(25) =76a(26) =242a(27) =729a(28) =0a(29) =0

External references