A010070 - OEIS

%I #16 Nov 28 2020 03:57:09

%S 1,3,5,7,16,25,34,43,52,61,70,72,81,90,99,108,117,126,135,137,146,155,

%T 164,173,182,191,200,202,211,220,229,238,247,256,265,267,276,285,294,

%U 303,312,321,330,332,341,350,359,368,377,386,395,397,406,415,424,433

%N Base 8 self or Colombian numbers (not of form k + sum of base 8 digits of k).

%D Steven R. Finch, Mathematical Constants, Cambridge, 2003, Section 2.24, pp. 179-180.

%D József Sándor and Borislav Crstici, Handbook of Number theory II, Kluwer Academic Publishers, 2004, Chapter 4, p. 384-386.

%H Amiram Eldar, <a href="/A010070/b010070.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Coi#Colombian">Index entries for Colombian or self numbers and related sequences</a>

%t s[n_] := n + Plus @@ IntegerDigits[n, 8]; m = 500; Complement[Range[m], Array[s, m]] (* _Amiram Eldar_, Nov 28 2020 *)

%Y Cf. A003052, A010061, A010064, A010067, A053829.

%K nonn,base

%O 1,2

%A _Leonid Broukhis_

%E More terms from _Amiram Eldar_, Nov 28 2020