id:A053429 - OEIS Search Results

Search: id:A053429

Displaying 1-1 of 1 results found.

page 1

Numbers n such that Catalan[n]+1 is prime.

+0
2

0, 1, 2, 5, 11, 25, 69, 86, 90, 95, 104, 145, 203, 215, 227, 291, 309, 322, 337, 407, 480, 792, 823, 919, 1001, 1159, 2226, 2743, 2822, 4250 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Primality up to Catalan[4250]+1 proved by PrimeForm.`
	EXAMPLE	`Catalan[25]+1=50!/25!/26!+1=4861946401453 is prime.`
	CROSSREFS	`Cf. A000108, A053427.` `Sequence in context: A047775 A001432 A127075 this_sequence A104237 A085945 A005469` `Adjacent sequences: A053426 A053427 A053428 this_sequence A053430 A053431 A053432`
	KEYWORD	`nonn`
	AUTHOR	`David Broadhurst (D.Broadhurst(AT)open.ac.uk), Jan 10 2000`

page 1

Search completed in 0.002 seconds

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research