Second differences of ninth powers (A001017).

Terms

a(0) =1a(1) =510a(2) =18660a(3) =223290a(4) =1448520a(5) =6433590a(6) =22151340a(7) =63588210a(8) =159338640a(9) =359376750a(10) =745368180a(11) =1443884970a(12) =2642886360a(13) =4611828390a(14) =7725765180a(15) =12493804770a(16) =19592282400a(17) =29903014110a(18) =44556993540a(19) =64983894810a(20) =92967744360a(21) =130709124630a(22) =180894272460