id:A023519 - OEIS Search Results

Search: id:A023519

Displaying 1-1 of 1 results found.

page 1

Least odd prime divisor of p(n)*p(n-1) - 1, or 1 if p(n)*p(n-1) - 1 is a power of 2.

+0
1

1, 5, 7, 17, 19, 71, 5, 7, 109, 3, 449, 3, 379, 881, 5, 3, 3, 7, 3, 29, 1, 3, 11, 3, 13, 31, 7, 5, 7, 1, 5, 1, 3, 1, 5, 7, 3, 3, 5, 3, 3, 97, 5, 7, 5, 17, 3, 3, 5, 7, 1, 3, 31, 5, 3, 3, 3, 7, 3, 11, 1, 11, 5, 1, 7, 5, 23, 3, 59, 151, 19, 3, 43, 3, 3, 11, 3, 19, 1, 13 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Adjacent sequences: A023516 A023517 A023518 this_sequence A023520 A023521 A023522` `Sequence in context: A106121 A075304 A128490 this_sequence A128491 A048700 A043879`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

page 1

Search completed in 0.002 seconds

Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research