id:A134616 - OEIS Search Results

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Numbers such that the sum of squares of their prime factors is a prime.

+0
10

6, 10, 12, 14, 26, 34, 40, 45, 54, 56, 63, 74, 75, 80, 90, 94, 96, 99, 104, 105, 126, 134, 146, 147, 152, 153, 171, 176, 184, 194, 206, 207, 231, 232, 234, 250, 261, 273, 274, 296, 300, 306, 326, 328, 334, 342, 344, 345, 350, 357, 363, 369, 376, 384, 386, 387 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1)=10, since 10=2*5 and 2^2+5^2=29 which is prime.`
	CROSSREFS	`Cf. A001597, A025475, A134333, A134344, A134376.` `Cf. A134600, A134602, A134605, A134608, A134612, A134619, A134621.` `Sequence in context: A015921 A134620 A108315 this_sequence A081390 A143958 A063214` `Adjacent sequences: A134613 A134614 A134615 this_sequence A134617 A134618 A134619`
	KEYWORD	`nonn`
	AUTHOR	`Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Nov 11 2007`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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