a(n) is the smallest multiple of n such that the sum of the square of the decimal digits of a(n) is divisible by n.

A191872

a(n) is the smallest multiple of n such that the sum of the square of the decimal digits of a(n) is divisible by n.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =130a(10) =1265a(11) =60a(12) =143a(13) =154a(14) =360a(15) =48a(16) =1071a(17) =396a(18) =133a(19) =240a(20) =693a(21) =1386a(22) =1817a(23) =888a(24) =50a(25) =286a(26) =999a(27) =2408a(28) =2552a(29) =390

External references