id:A008335 - OEIS Search Results

Search: id:A008335

Displaying 1-1 of 1 results found.

page 1

Number of primes dividing p+1 as p runs through the primes.

+0
1

1, 1, 2, 1, 2, 2, 2, 2, 2, 3, 1, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 2, 3, 3, 1, 3, 3, 3, 3, 2, 2, 2, 3, 3, 3, 3, 2, 2, 3, 2, 2, 2, 3, 3, 3, 3, 2, 3, 3, 3, 3, 2, 2, 3, 2, 3, 3, 3, 2, 3, 2, 2, 3, 3, 3, 3, 2, 3, 3, 2, 4, 2, 3, 3, 4, 2, 2, 3, 3, 3, 3, 2, 4, 2, 3, 3, 2, 3, 2 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000`
	MAPLE	`for i from 1 to 500 do if isprime(i) then print(nops(factorset(i+1))); fi; od;`
	CROSSREFS	`Sequence in context: A068212 A064131 A105194 this_sequence A106031 A055175 A025819` `Adjacent sequences: A008332 A008333 A008334 this_sequence A008336 A008337 A008338`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

page 1

Search completed in 0.002 seconds

Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research