id:A153139 - OEIS Search Results

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Numbers n with property that n^2 is a concatenation of three 3-digit primes.

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10171, 10371, 10447, 10449, 10451, 11303, 11801, 11827, 12319, 12553, 13387, 13829, 13847, 13903, 13913, 14141, 14549, 15087, 15097, 15153, 15847, 16431, 16841, 16847, 17549, 18363, 18379, 18637, 18697, 18701, 19319, 19337, 19579 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`There are exactly 60 such numbers.`
	EXAMPLE	`a(1)= 10171, 10171^2=103_449_241` `a(2)= 10371, 10371^2=107_557_641` `a(60)=31591, 31591^2=997_991_281`
	CROSSREFS	`Cf. A153048, A153050` `Sequence in context: A159863 A054037 A023066 this_sequence A128878 A050267 A102326` `Adjacent sequences: A153136 A153137 A153138 this_sequence A153140 A153141 A153142`
	KEYWORD	`base,fini,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Dec 19 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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