id:A116499 - OEIS Search Results

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Numbers n such that the representation of n^2 has the structure dmmd, where d is a single digit and m a string of digits.

+0
3

63565788, 777035126, 785900449264170834, 824735400720481514, 41969556121016094021, 7841042904081599033746826, 775474811976872476373043200886 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(8) and a(9) have 42 digits. a(8) = 403578381989727694739321538082071713672671.`
	EXAMPLE	`785900449264170834^2 = 6[17639516153625555][17639516153625555]6.`
	CROSSREFS	`Cf. A116500, A116501.` `Sequence in context: A096559 A125063 A017539 this_sequence A103789 A138085 A011576` `Adjacent sequences: A116496 A116497 A116498 this_sequence A116500 A116501 A116502`
	KEYWORD	`base,nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 18 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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