id:A118489 - OEIS Search Results

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Squares for which the product of the digits is a triangular number.

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0, 1, 16, 25, 49, 100, 400, 576, 900, 1024, 1089, 1521, 2025, 2209, 2304, 2401, 2500, 2601, 2704, 2809, 3025, 3600, 4096, 4900, 5041, 5625, 6084, 6400, 7056, 8100, 9025, 9409, 9604, 9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236, 12100, 14400 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`26569 is in the sequence because (1) it is a square, (2) the product of its digits is 26569=3240 which is a triangular number.`
	CROSSREFS	`Cf. A000217.` `Adjacent sequences: A118486 A118487 A118488 this_sequence A118490 A118491 A118492` `Sequence in context: A030666 A030676 A002644 this_sequence A110922 A065408 A112392`
	KEYWORD	`base,nonn`
	AUTHOR	`Luc Stevens (lms022(AT)yahoo.com), May 05 2006`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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