a(n+1) = a(n) + sum of squares of digits of a(n).

Terms

a(0) =1a(1) =2a(2) =6a(3) =42a(4) =62a(5) =102a(6) =107a(7) =157a(8) =232a(9) =249a(10) =350a(11) =384a(12) =473a(13) =547a(14) =637a(15) =731a(16) =790a(17) =920a(18) =1005a(19) =1031a(20) =1042a(21) =1063a(22) =1109a(23) =1192a(24) =1279a(25) =1414a(26) =1448a(27) =1545a(28) =1612a(29) =1654