id:A060568 - OEIS Search Results

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Number of primes between n and R(n) where R(n) (A004086) is the digit reversal of n.

+0
2

0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 3, 4, 6, 9, 11, 12, 15, 16, 7, 3, 0, 2, 4, 6, 9, 11, 13, 14, 8, 4, 2, 0, 2, 4, 7, 8, 10, 12, 10, 6, 4, 2, 0, 2, 4, 6, 8, 9, 12, 9, 6, 4, 2, 0, 2, 5, 7, 7, 14, 11, 9, 7, 4, 2, 0, 2, 4, 5, 15, 12, 11, 8, 6, 5, 2, 0, 2, 2, 18, 15, 13, 10, 8, 7, 4, 2, 0, 1, 20, 16, 14 (list; graph; listen)

	OFFSET	`1,10`
	EXAMPLE	`a(10) = 4, as there are four primes between 10 and 1.`
	CROSSREFS	`Sequence in context: A119708 A106142 A092512 this_sequence A073466 A062525 A085655` `Adjacent sequences: A060565 A060566 A060567 this_sequence A060569 A060570 A060571`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 27 2001`
	EXTENSIONS	`More terms from Larry Reeves (larryr(AT)acm.org), May 10 2001`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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