id:A049984 - OEIS Search Results

Search: id:A049984

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Primes of form n!-(n-1)!+1.

+0
2

2, 5, 19, 97, 601, 35281, 5748019201, 2311256907767808001, 594596384994354462720001, 5382999938946608755288342267304597177897268019200000000001, 13633255721440695716610954480987433166207401445450628961640059502592000000000000\ 1 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`f[n_]:=n!+n; lst={}; Do[If[PrimeQ[f[n+1]-f[n]], AppendTo[lst, f[n+1]-f[n]]], {n, 0, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 27 2009]`
	CROSSREFS	`For more terms see A049432.` `Adjacent sequences: A049981 A049982 A049983 this_sequence A049985 A049986 A049987` `Sequence in context: A020019 A020109 A020015 this_sequence A052866 A007003 A020117`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 8 07:45 EST 2009. Contains 166143 sequences.

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