id:A073946 - OEIS Search Results

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Squares n such that n + pi(n) is a prime.

+0
3

9, 36, 81, 121, 361, 625, 961, 3136, 6724, 8281, 9604, 10609, 12996, 13225, 19881, 25281, 38025, 39204, 40000, 43264, 44944, 45796, 47961, 60516, 64009, 79524, 80089, 80656, 83521, 86436, 90000, 93636, 103684, 117649, 121801, 129600 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1)=9, since 9 is a square, pi(9)=4 and 9+4=13 is a prime.`
	CROSSREFS	`This sequence is a subsequence of sequence A077510. The corresponding sequence of primes is A113943 and the square roots of the original sequence is A113944.` `Sequence in context: A143224 A068810 A077115 this_sequence A016766 A083353 A083014` `Adjacent sequences: A073943 A073944 A073945 this_sequence A073947 A073948 A073949`
	KEYWORD	`nonn`
	AUTHOR	`David Garber (garber(AT)math.huji.ac.il), Nov 13 2002`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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