Least triangular number whose digit permutations yield exactly n further triangular numbers.

A095870

Least triangular number whose digit permutations yield exactly n further triangular numbers.

Terms

    a(0) =1a(1) =10a(2) =120a(3) =17020a(4) =20503a(5) =156520a(6) =1087075a(7) =1021735a(8) =1026028a(9) =1053426a(10) =104653a(11) =10623745a(12) =10280845a(13) =1004653a(14) =10568503a(15) =10725396a(16) =10762480a(17) =12890503a(18) =10348975a(19) =10394520a(20) =101495628a(21) =100543290a(22) =102495403a(23) =100359028a(24) =104972805a(25) =124780503

External references