A157197 - OEIS

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A157197

Numbers k such that p(k) + p(k+1) + p(k+2) = A122706(n)^n, where p(k) is a k-th prime.

3, 6, 85, 20877, 52086501, 10988577 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	EXAMPLE	`a(1) = 3 because p(3) + p(4) + p(5) = 5 + 7 + 11 = 23 = A122706(1)^1.` `a(2) = 6 because p(6) + p(7) + p(8) = 13 + 17 + 19 = 49 = 7^2 = A122706(2)^2.`
	CROSSREFS	`Cf. A122706` `Sequence in context: A205081 A182966 A023174 * A036286 A084008 A092680` `Adjacent sequences: A157194 A157195 A157196 * A157198 A157199 A157200`
	KEYWORD	`more,nonn`
	AUTHOR	`Alexander Adamchuk (alex(AT)kolmogorov.com), Feb 24 2009`
	EXTENSIONS	`a(5)-a(6) from Max Alekseyev (maxale(AT)gmail.com), Dec 13 2011`

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Last modified February 16 11:30 EST 2012. Contains 205907 sequences.