A078782 - OEIS

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A078782

Nonprimes (A018252) with prime (A000040) subscripts.

4, 6, 9, 12, 18, 21, 26, 28, 34, 42, 45, 52, 57, 60, 65, 74, 81, 84, 91, 95, 98, 106, 112, 119, 128, 133, 135, 141, 143, 147, 165, 170, 177, 180, 192, 195, 203, 209, 214, 220, 228, 231, 244, 246, 250, 253, 267, 284, 288, 290, 295, 301, 303, 316, 323, 329, 336 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`a(n) = A018252(A000040(n)). Subsequence of A175250 (nonprimes (A018252) with noncomposite (A008578) subscripts), a(n) = A175250(n+1). a(n) U A102615(n) = A018252(n). [From Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Mar 13 2010]`
	EXAMPLE	`a(4) = nonprime(prime(4)) = nonprime(7) = 12.`
	CROSSREFS	`Sequence in context: A185595 A088765 A175250 * A165897 A020165 A110607` `Adjacent sequences: A078779 A078780 A078781 * A078783 A078784 A078785`
	KEYWORD	`easy,nonn`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 09 2003`
	EXTENSIONS	`Corrected by Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Mar 13 2010`

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Last modified February 14 03:03 EST 2012. Contains 205567 sequences.