id:A086470 - OEIS Search Results

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Terms of A086469 for which psigma(n) = psigma(n+1).

+0
2

9, 21, 33, 44, 57, 93, 141, 169, 177, 201, 213, 258, 381, 393, 426, 453, 501, 537, 633, 670, 678, 717, 762, 921, 933, 1041, 1137, 1266, 1293, 1317, 1401, 1437, 1590, 1641, 1686, 1713, 1761, 1821, 1857, 1893, 1941, 1990, 2181, 2217, 2361, 2433, 2509, 2517 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`If n =3p and n+1 = 2q where p and q are primes then n is a member.`
	EXAMPLE	`9 is a member as psigma(9) = 1+3 +9 = psigma(10) = 1+2 +10 = 13.`
	CROSSREFS	`Cf. A086469.` `Adjacent sequences: A086467 A086468 A086469 this_sequence A086471 A086472 A086473` `Sequence in context: A139538 A110701 A133929 this_sequence A017629 A107978 A043112`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 21 2003`
	EXTENSIONS	`Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Mar 07 2005`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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