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A118488 Squares for which the sum of the digits is a triangular number. 0
0, 1, 64, 100, 361, 1225, 2116, 3025, 5041, 6400, 10000, 17956, 18496, 21025, 23104, 26569, 29584, 32041, 36100, 38809, 47089, 54289, 58564, 59536, 63001, 68644, 69696, 77284, 82369, 87616, 88804, 94249, 110224, 117649, 122500, 128881, 130321 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

EXAMPLE

26569 is in the sequence because (1) it is a square, (2) the sum of its digits is 2+6+5+6+9=28 which is a triangular number.

CROSSREFS

Cf. A000217.

Sequence in context: A175163 A104022 A061099 * A088033 A039481 A094682

Adjacent sequences:  A118485 A118486 A118487 * A118489 A118490 A118491

KEYWORD

base,nonn

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), May 05 2006

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Last modified February 16 10:23 EST 2012. Contains 205904 sequences.