id:A065540 - OEIS Search Results

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a(n) is smallest prime > 3*a(n-1), a(1) = 3.

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3, 11, 37, 113, 347, 1049, 3163, 9491, 28477, 85439, 256337, 769019, 2307059, 6921179, 20763541, 62290633, 186871907, 560615723, 1681847191, 5045541577, 15136624739, 45409874221, 136229622677, 408688868051, 1226066604179 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`NextPrim[n_Integer] := Block[ {k = n + 1}, While[ !PrimeQ[k], k++ ]; Return[k]]; a[1] = 3; a[n_] := NextPrim[ 3*a[n - 1]]; Table[ a[n], {n, 1, 30} ]`
	CROSSREFS	`Sequence in context: A005422 A040017 A007615 this_sequence A084171 A118044 A027062` `Adjacent sequences: A065537 A065538 A065539 this_sequence A065541 A065542 A065543`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 28 2001`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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