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.

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A254961 Cubes not divisible by 10 with digits d_1, d_2, ... d_k such that d_1^3 + ... + d_k^3 is a cube.

Original entry on oeis.org

1, 8, 474552, 1643032, 13312053, 27818127, 125751501, 1015075125, 1121622319, 1256216039, 1501123625, 3811036328, 11000295424, 27081081027, 36067838464, 69173457625, 81690010219, 125075015001, 143466352875, 164386475352, 185680777625, 198053337789, 226534772736, 269460960579, 271468421875, 273738705157
Offset: 1

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Author

Derek Orr, Feb 11 2015

Keywords

Comments

Any one of these terms can have M 0's following the term, where M is a multiple of 3. Thus, the cubes ending in 0 have been omitted.

Crossrefs

Cf. A000578, A254960.

Programs

  • PARI
    for(n=0,10^4,if(n%10,N=n^3;d=digits(N);s=0;for(i=1,#d,s+=d[i]^3);if(ispower(s,3),print1(N,", "))))
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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