Expansion of 1/((1-2x)(1-3x)(1-4x)(1-9x)).

A025470

Expansion of 1/((1-2x)(1-3x)(1-4x)(1-9x)).

Terms

    a(0) =1a(1) =18a(2) =217a(3) =2238a(4) =21493a(5) =199506a(6) =1821889a(7) =16508646a(8) =149043565a(9) =1343313114a(10) =12097677241a(11) =108911059374a(12) =980328977317

External references