Triangular numbers (A000217) that are the sum of eight consecutive triangular numbers.

A257712

Triangular numbers (A000217) that are the sum of eight consecutive triangular numbers.

Terms

    a(0) =120a(1) =276a(2) =1176a(3) =28920a(4) =126756a(5) =306936a(6) =1345620a(7) =33362196a(8) =146264856a(9) =354192420a(10) =1552832856a(11) =38499933816a(12) =168789505620a(13) =408737734296

External references