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A055575 Sum of digits of n^4 is equal to n. 8
0, 1, 7, 22, 25, 28, 36 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

7 is a member because 7^4 = 2401 and 2+4+0+1 = 7.

MATHEMATICA

Select[Range[0, 50], #==Total[IntegerDigits[#^4]] &] (* Vincenzo Librandi, Feb 23 2015 *)

PROG

(MAGMA) [n: n in [0..50] | &+Intseq(n^4) eq n ]; // Vincenzo Librandi, Feb 23 2015

(Sage) [n for n in (0..50) if sum((n^4).digits()) == n] # Bruno Berselli, Feb 23 2015

CROSSREFS

Cf. A055565, A055570, A046459, A055576, A055577.

Cf. A152147.

Sequence in context: A200886 A070412 A286572 * A297712 A041090 A042639

Adjacent sequences:  A055572 A055573 A055574 * A055576 A055577 A055578

KEYWORD

base,fini,full,nonn

AUTHOR

Henry Bottomley, May 26 2000

STATUS

approved

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Last modified May 23 20:23 EDT 2019. Contains 323528 sequences. (Running on oeis4.)