id:A061246 - OEIS Search Results

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Prime numbers with every digit a perfect square, i.e. consisting of only digits 0, 1, 4, 9.

+0
5

11, 19, 41, 101, 109, 149, 191, 199, 401, 409, 419, 449, 491, 499, 911, 919, 941, 991, 1009, 1019, 1049, 1091, 1109, 1409, 1499, 1901, 1949, 1999, 4001, 4019, 4049, 4091, 4099, 4111, 4409, 4441, 4909, 4919, 4999, 9001, 9011, 9041, 9049, 9091, 9109, 9199 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`R. Ondrejka, The Top Ten: a Catalogue of Primal Configurations.`
	EXAMPLE	`a(10) = 419, 419 is a prime and 1, 4 and 9 are squares.`
	CROSSREFS	`Cf. A066591.` `Sequence in context: A165944 A100557 A066591 this_sequence A068493 A167535 A107201` `Adjacent sequences: A061243 A061244 A061245 this_sequence A061247 A061248 A061249`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 23 2001`
	EXTENSIONS	`Corrected and extended by Jason Earls (zevi_35711(AT)yahoo.com), May 17 2005` `Edited by N. J. A. Sloane (njas(AT)research.att.com), Aug 29 2008 at the suggestion of R. J. Mathar`

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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