id:A046519 - OEIS Search Results

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Least n-digit 'happy' prime.

+0
3

7, 13, 103, 1009, 10009, 100003, 1000003, 10000121, 100000039, 1000000009, 10000000033, 100000000003, 1000000000039, 10000000000411, 100000000000067, 1000000000000487, 10000000000000481, 100000000000000003 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Values found by Harvey Heinz and Jud McCranie.`
	REFERENCES	`R. K. Guy, Unsolved Problems Number Theory, Sect. E34.`
	LINKS	`C. Rivera, Related puzzle page` `Eric Weisstein's World of Mathematics, Happy Number`
	CROSSREFS	`Cf. A007770.` `Sequence in context: A001544 A136720 A035030 this_sequence A128351 A050946 A084963` `Adjacent sequences: A046516 A046517 A046518 this_sequence A046520 A046521 A046522`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1998.`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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