id:A070713 - OEIS Search Results

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Integers whose sum of digits as well as product of digits is a nonzero square.

+0
1

1, 4, 9, 22, 88, 144, 414, 441, 466, 646, 664, 889, 898, 988, 1111, 1177, 1224, 1242, 1339, 1393, 1422, 1717, 1771, 1933, 2124, 2142, 2214, 2241, 2266, 2338, 2383, 2412, 2421, 2626, 2662, 2833, 3139, 3193, 3238, 3283, 3319, 3328, 3355, 3382, 3391, 3535 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`3931 is a member of this sequence as 3+9+3+1=16=4^2 and 393*1=81=9^2.`
	CROSSREFS	`Sequence in context: A048654 A122626 A135025 this_sequence A060250 A138991 A138990` `Adjacent sequences: A070710 A070711 A070712 this_sequence A070714 A070715 A070716`
	KEYWORD	`nonn,base`
	AUTHOR	`John E. Lenz (jel5010(AT)yahoo.com), May 13 2002`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

AT&T Labs Research