a(n+1) = A154771(a(n)) = sum of all distinct "valid substrings" of a(n); a(1)=10 (least nontrivial choice).

A154770

a(n+1) = A154771(a(n)) = sum of all distinct "valid substrings" of a(n); a(1)=10 (least nontrivial choice).

Terms

    a(0) =10a(1) =11a(2) =12a(3) =15a(4) =21a(5) =24a(6) =30a(7) =33a(8) =36a(9) =45a(10) =54a(11) =63a(12) =72a(13) =81a(14) =90a(15) =99a(16) =108a(17) =127a(18) =176a(19) =283a(20) =407a(21) =458a(22) =578a(23) =733a(24) =849a(25) =1003a(26) =1117a(27) =1381a(28) =2044a(29) =2318

External references