Triangular numbers for which the sum of the digits equals the sum of the digits of the next triangular number.

A117511

Triangular numbers for which the sum of the digits equals the sum of the digits of the next triangular number.

Terms

    a(0) =36a(1) =153a(2) =2556a(3) =3240a(4) =4851a(5) =5778a(6) =9045a(7) =11628a(8) =13041a(9) =14535a(10) =17766a(11) =19503a(12) =33930a(13) =41328a(14) =46665a(15) =49455a(16) =52326a(17) =71253a(18) =74691a(19) =81810a(20) =85491a(21) =93096a(22) =109278a(23) =122265a(24) =131328a(25) =140715a(26) =145530a(27) =160461a(28) =170820a(29) =181503

External references