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.

A274833 6-white numbers: partition digits of n^6 into blocks of 6 starting at right; sum of these 6-digit numbers equals n.

Original entry on oeis.org

0, 1, 1208494, 1358344, 1415583, 1538460, 1734265, 1773226, 1818180, 1994707, 2155140, 2187108, 2208493, 2215486, 2272725, 2272726, 2311687, 2318680, 2351350, 2356641, 2358343, 2363634, 2390311, 2402596, 2420874, 2449252, 2454544, 2459835, 2481220, 2500498, 2533168
Offset: 1

Views

Author

Paolo P. Lava, Jul 08 2016

Keywords

Comments

Three pairs of consecutive terms: 2272725 and 2272726; 2999997 and 2999998; 3272724 and 3272725.

Examples

			1208494^6 = 3115064124992224583219040254156270656 and 3 + 115064 + 124992 + 224583 + 219040 + 254156 + 270656 = 1208494.
		

Crossrefs

Programs

  • Maple
    P:=proc(q,h) local a,b,n;
    for n from 0 to q do a:=n^h; b:=0; while a>0 do b:=b+(a mod 10^h); a:=trunc(a/10^h); od;
    if n=b then print(n); fi; od; end: P(10^6,6);
  • Mathematica
    k = 6; Select[Range[0, 10^7], Function[n, Total[FromDigits /@ Partition[PadLeft[#, Length@ # + k - Mod[Length@ #, k]], k]] == n &@ IntegerDigits[n^k]]] (* Michael De Vlieger, Jul 08 2016, after Harvey P. Dale at A037045 *)