id:A033594 - OEIS Search Results

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(n-1)*(2*n-1)*(3*n-1).

+0
2

-1, 0, 15, 80, 231, 504, 935, 1560, 2415, 3536, 4959, 6720, 8855, 11400, 14391, 17864, 21855, 26400, 31535, 37296, 43719, 50840, 58695, 67320, 76751, 87024, 98175, 110240, 123255, 137256, 152279, 168360 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`The sequence of n such that n is prime and (2n+1) is prime is the sequence of Sophie Germain primes A005384 and the subsequence of those for which in addition (3n+2) is prime is A067256. - Jonathan Vos Post (jvospost3(AT)gmail.com), Dec 15 2004`
	CROSSREFS	`Cf. A005384, A067256.` `Sequence in context: A044583 A082540 A085808 this_sequence A059377 A123865 A024002` `Adjacent sequences: A033591 A033592 A033593 this_sequence A033595 A033596 A033597`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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

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