A086711 - OEIS

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A086711

Primes p such that A001414(p-1) = A001414(p+1), where A001414 = sum of primes dividing n (with repetition).

11, 17, 31, 251, 1429, 3041, 16561, 16927, 53299, 56897, 89783, 95089, 213599, 282977, 345547, 432587, 592223, 763457, 906949, 915799, 1050449, 1058389, 1485017, 1577341, 1678399, 1780253, 1855549, 2131687, 2374289, 2658259 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Conjecture: sequence is infinite.`
	LINKS	`Charles R Greathouse IV, Table of n, a(n) for n = 1..1280`
	EXAMPLE	`a(3)=31 because it is prime and 30=235, 32=2^5 and 2+3+5 = 2+2+2+2+2 = 10.`
	CROSSREFS	`Cf. A001414, A190680.` `Sequence in context: A189324 A127703 A165667 * A039514 A098797 A271999` `Adjacent sequences: A086708 A086709 A086710 * A086712 A086713 A086714`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 28 2003`
	STATUS	`approved`

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Last modified August 19 07:12 EDT 2017. Contains 290794 sequences.