A010070 Base 8 self or Colombian numbers (not of form k + sum of base 8 digits of k).

1, 3, 5, 7, 16, 25, 34, 43, 52, 61, 70, 72, 81, 90, 99, 108, 117, 126, 135, 137, 146, 155, 164, 173, 182, 191, 200, 202, 211, 220, 229, 238, 247, 256, 265, 267, 276, 285, 294, 303, 312, 321, 330, 332, 341, 350, 359, 368, 377, 386, 395, 397, 406, 415, 424, 433

Offset

1,2

References

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

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

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Index entries for Colombian or self numbers and related sequences

Mathematica

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

Crossrefs

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

Sequence in context: A080741 A247356 A291736 * A291107 A132445 A307437

Adjacent sequences: A010067 A010068 A010069 * A010071 A010072 A010073

Keyword

nonn,base

Author

Leonid Broukhis

Extensions

More terms from Amiram Eldar, Nov 28 2020

Status

approved