Numbers n such that T(n) + T(n+1) + ... + T(n+36) is a square, where T = A000217 (triangular numbers).

A257710

Numbers n such that T(n) + T(n+1) + ... + T(n+36) is a square, where T = A000217 (triangular numbers).

Terms

    a(0) =5a(1) =32a(2) =291a(3) =661a(4) =4102a(5) =8515a(6) =13685a(7) =113558a(8) =182368a(9) =377701a(10) =2290342a(11) =5027232a(12) =30483491a(13) =63130838a(14) =101378488a(15) =840238915a(16) =1349295285a(17) =2794368792a(18) =16944086651a(19) =37191598501a(20) =225516999142a(21) =467042067835a(22) =749998177365

External references