Triangular numbers that are the sum of 2 consecutive terms of A130518.

A247247

Triangular numbers that are the sum of 2 consecutive terms of A130518.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =21a(4) =120a(5) =300a(6) =2080a(7) =11781a(8) =29403a(9) =203841a(10) =1154440a(11) =2881200a(12) =19974360a(13) =113123361a(14) =282328203a(15) =1957283461a(16) =11084934960a(17) =27665282700a(18) =191793804840

External references