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A337356 Numbers whose digit sum of their square is equal to their square root. 0
0, 1, 49, 484, 625, 784, 1296 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

FORMULA

a(n) = A055575(n)^2. - Joerg Arndt, Sep 01 2020

MATHEMATICA

Select[Range[0, 36], Plus @@ IntegerDigits[#^4] == # &]^2 (* Amiram Eldar, Sep 08 2020 *)

CROSSREFS

Cf. A055575.

Sequence in context: A263706 A263707 A061621 * A030510 A104935 A110203

Adjacent sequences:  A337353 A337354 A337355 * A337357 A337358 A337359

KEYWORD

nonn,base,fini,full

AUTHOR

Evzen Stejskal, Aug 24 2020

STATUS

approved

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Last modified August 6 00:46 EDT 2021. Contains 346493 sequences. (Running on oeis4.)