id:A084441 - OEIS Search Results

Search: id:A084441

Displaying 1-1 of 1 results found.

page 1

Primes that can be written as 1+p+p^k, p prime and k>0.

+0
6

5, 7, 11, 13, 19, 23, 31, 47, 59, 67, 83, 107, 131, 167, 179, 227, 263, 307, 347, 359, 383, 467, 479, 503, 563, 587, 631, 719, 733, 839, 863, 887, 983, 1019, 1187, 1283, 1307, 1319, 1367, 1439, 1487, 1523, 1619, 1723, 1823, 1907, 2027, 2039, 2063, 2099, 2207 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A084440(a(n))>0; safe primes (A005385) are a subset.`
	EXAMPLE	`prime(6) = 13 = 1+3+3^2, therefore 13 is a term; A084440(6)=1.`
	CROSSREFS	`Cf. A084442, A084443, A084444, A084445.` `Adjacent sequences: A084438 A084439 A084440 this_sequence A084442 A084443 A084444` `Sequence in context: A007529 A108409 A039681 this_sequence A112397 A081759 A088664`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 26 2003`

page 1

Search completed in 0.002 seconds

Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.

AT&T Labs Research