Square array T(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/(1 - 9*x*(1 + x)^k)^(1/3).
A361839
Square array T(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/(1 - 9*x*(1 + x)^k)^(1/3).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =3a(5) =18a(6) =1a(7) =3a(8) =21a(9) =126a(10) =1a(11) =3a(12) =24a(13) =162a(14) =945a(15) =1a(16) =3a(17) =27a(18) =201a(19) =1341a(20) =7371a(21) =1a(22) =3a(23) =30a(24) =243a(25) =1809a(26) =11529a(27) =58968a(28) =1a(29) =3
External references
- oeis: A361839