A002108 4th powers written backwards.

1, 61, 18, 652, 526, 6921, 1042, 6904, 1656, 1, 14641, 63702, 16582, 61483, 52605, 63556, 12538, 679401, 123031, 61, 184491, 652432, 148972, 677133, 526093, 679654, 144135, 656416, 182707, 18, 125329, 6758401, 1295811, 6336331, 5260051, 6169761

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• base

Links

• T. D. Noe, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A004086, A000583, A002942, A004165.

{This sequence} Intersection A000583 = A186080 (palindromes).

Programs

Mathematica

FromDigits[Reverse[IntegerDigits[#]]]&/@(Range[40]^4) (* Harvey P. Dale, May 03 2012 *)

PARI

a(n) = fromdigits(Vecrev(digits(n^4))); \\ Michel Marcus, Jun 04 2019

Formula

From Michel Marcus, Jun 04 2019: (Start)

a(n) = A004086(A000583(n)).

a(n) = A002942(n^2). (End)

a(n * 10^k) = a(n) for k >= 1. - Bernard Schott, Jun 04 2019