cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A194887 Numbers that are the sum of two powers of 12.

Original entry on oeis.org

2, 13, 24, 145, 156, 288, 1729, 1740, 1872, 3456, 20737, 20748, 20880, 22464, 41472, 248833, 248844, 248976, 250560, 269568, 497664, 2985985, 2985996, 2986128, 2987712, 3006720, 3234816, 5971968, 35831809, 35831820, 35831952, 35833536, 35852544, 36080640
Offset: 1

Views

Author

Jeremy Gardiner, Oct 09 2011

Keywords

Comments

Parity of this sequence is A073424.

Examples

			12^0 + 12^2 = 145
		

Crossrefs

Programs

  • Mathematica
    t = 12^Range[0, 9]; Select[Union[Flatten[Table[i + j, {i, t}, {j, t}]]], # <= t[[-1]] + 1 &] (* T. D. Noe, Oct 09 2011 *)
    Total/@Tuples[12^Range[0,10],2]//Union (* Harvey P. Dale, Jul 20 2019 *)

Extensions

Typo in example corrected by Zak Seidov, Oct 23 2011