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A053057
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Squares whose digit sum is also a square.
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10
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0, 1, 4, 9, 36, 81, 100, 121, 144, 169, 196, 225, 324, 400, 441, 484, 529, 900, 961, 1521, 1681, 2025, 2304, 2601, 3364, 3481, 3600, 4489, 4624, 5776, 5929, 7225, 7396, 8100, 8836, 9025, 10000, 10201, 10404, 10609, 10816, 11025, 12100, 12321, 12544, 12769
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| This is a subsequence of A028839, sum of digits of n is a square.
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REFERENCES
| Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000
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LINKS
| Daniel Mondot, Table of n, a(n) for n=1..1192
M. L. Perez et al., eds., Smarandache Notions Journal
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PROG
| (MAGMA) [ n^2: n in [0..120] | IsSquare(s) where s is &+Intseq(n^2, 10) ]; // Bruno Berselli, May 26 2011
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CROSSREFS
| Cf. A000290.
Sequence in context: A117676 A085575 A117756 * A118547 A115700 A029806
Adjacent sequences: A053054 A053055 A053056 * A053058 A053059 A053060
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KEYWORD
| easy,base,nonn
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AUTHOR
| Felice Russo (frusso(AT)micron.com), Feb 25 2000
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EXTENSIONS
| More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 28 2000
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