id:A112303 - OEIS Search Results

Search: id:A112303

Displaying 1-1 of 1 results found.

page 1

Permutation of primes generated by 3-rowed array shown below.

+0
1

2, 7, 3, 17, 11, 5, 29, 19, 13, 41, 31, 23, 53, 43, 37, 67, 59, 47, 79, 71, 61, 97, 83, 73, 107, 101, 89, 127, 109, 103, 139, 139, 131, 113, 157, 149, 137, 173, 163, 151, 191, 179, 167, 193, 181, 227, 211, 197, 239, 229, 223, 257, 263, 251 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`2 7 17 29 41 53 67 79...(A031377)` `3 11 19 31 43 59 71 83...(A031369)` `5 13 23 37 47 61 73 89...(A031336)`
	FORMULA	`a(n) = A000040(a(p+3q) = a(p)+3q) with p and q positive integers.` `a(n) = PrimePi(a(p+3q) = a(p)+3q) with p and q positive integers.`
	CROSSREFS	`Cf. A115302.` `Sequence in context: A099130 A076992 A138751 this_sequence A089124 A117809 A052091` `Adjacent sequences: A112300 A112301 A112302 this_sequence A112304 A112305 A112306`
	KEYWORD	`easy,nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Oct 17 2006, Nov 08 2006`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research