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.

Showing 1-3 of 3 results.

A067505 Powers of 8 with digit sum also a power of 8.

Original entry on oeis.org

1, 8, 512, 68719476736, 76957043352332967211482500195592995713046365762627825523336510555167425334955489475418488779072100860950445293568
Offset: 1

Views

Author

Amarnath Murthy, Feb 11 2002

Keywords

Comments

Next two terms are 8^1014 and 8^64578.

Crossrefs

Extensions

Extended and corrected by Sascha Kurz, Mar 18 2002
Edited by N. J. A. Sloane at the suggestion of Andrew S. Plewe, May 27 2007

A067510 Powers of 6 with digit sum divisible by 6.

Original entry on oeis.org

6, 1296, 279936, 1679616, 10077696, 60466176, 13060694016, 78364164096, 2821109907456, 16926659444736, 101559956668416, 3656158440062976, 789730223053602816, 4738381338321616896, 28430288029929701376
Offset: 1

Views

Author

Amarnath Murthy, Feb 11 2002

Keywords

Crossrefs

Programs

  • Maple
    select(n -> convert(convert(n,base,10),`+`)::even, [seq(6^i, i=1..100)]); # Robert Israel, Apr 20 2020

Extensions

Offset changed by Robert Israel, Apr 20 2020

A067511 Powers of 7 with digit sum divisible by 7.

Original entry on oeis.org

7, 2401, 117649, 40353607, 1977326743, 9387480337647754305649, 65712362363534280139543, 459986536544739960976801, 15286700631942576193765185769276826401, 5243338316756303634461458718861951455543, 12589255298531885026341962383987545444758743
Offset: 1

Views

Author

Amarnath Murthy, Feb 11 2002

Keywords

Crossrefs

Programs

  • PARI
    lista(n)={my(L=List(),k=0);while(#LAndrew Howroyd, Sep 17 2024

Extensions

More terms from Sascha Kurz, Mar 18 2002
Offset changed and a(10) onwards from Andrew Howroyd, Sep 17 2024
Showing 1-3 of 3 results.