A250547 Numbers of the form 6^x + y^6 with x, y >= 0

1, 2, 6, 7, 36, 37, 65, 70, 100, 216, 217, 280, 730, 735, 765, 945, 1296, 1297, 1360, 2025, 4097, 4102, 4132, 4312, 5392, 7776, 7777, 7840, 8505, 11872, 15626, 15631, 15661, 15841, 16921, 23401, 46656, 46657, 46662, 46692, 46720, 46872, 47385, 47952

Offset

1,2

Comments

No terms are divisible by 19, 23, 43, 47, 67, 71.

Links

Table of n, a(n) for n=1..44.

Example

37 is in this sequence because 6^2+1^6 = 37.
735 is in this sequence because 6^1+3^6 = 735.

Mathematica

nn=10; Union[Select[Flatten[Table[6^x + y^6, {x, 0, nn}, {y, 0, nn}]], #<=nn^6 &]]

Crossrefs

Cf. similar sequences listed in A250482.

Sequence in context: A060112 A057914 A216037 * A366061 A057249 A246120

Adjacent sequences: A250544 A250545 A250546 * A250548 A250549 A250550

Keyword

nonn

Author

Vincenzo Librandi, Nov 27 2014

Status

approved