a(n) is the least number m such that m = n^d_1 + n^d_2 + ... + n^d_k where d_k represents the k-th digit in the decimal expansion of m, or 0 if no such number exists.

A236067

a(n) is the least number m such that m = n^d_1 + n^d_2 + ... + n^d_k where d_k represents the k-th digit in the decimal expansion of m, or 0 if no such number exists.

Terms

    a(0) =1a(1) =0a(2) =12a(3) =4624a(4) =3909511a(5) =0a(6) =13177388a(7) =1033a(8) =10a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =2758053616a(15) =1053202a(16) =7413245658a(17) =419370838921a(18) =52135640a(19) =1347536041a(20) =833904227332a(21) =5117557126a(24) =31301a(25) =0a(27) =405287637330a(28) =35751665247

External references