Numbers expressible as sum of squares of two distinct positive triangular numbers exactly in two ways.

A212842

Numbers expressible as sum of squares of two distinct positive triangular numbers exactly in two ways.

Terms

    a(0) =47125a(1) =279225a(2) =354061a(3) =549181a(4) =672409a(5) =1626409a(6) =3349125a(7) =5504500a(8) =6186250a(9) =29811609a(10) =32035636a(11) =36082909a(12) =66280609a(13) =178651252a(14) =265364325a(15) =379845684a(16) =380287441a(17) =380367010a(18) =385371234a(19) =420373045a(20) =526535109a(21) =622542601a(22) =654992101a(23) =1065369601a(24) =1298353716a(25) =1339962850

External references