id:A039652 - OEIS Search Results

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Becomes prime after n iterations of f(x) = phi(x)+1 (least inverse of A039651).

+0
1

2, 1, 15, 35, 69, 255, 535, 949, 1957, 2513, 2923, 4531, 17701, 22957, 54589, 79421, 80029, 84493, 98581, 102827, 115243, 239111, 291149, 310813, 362621, 398893, 598341, 801923, 838307, 1063493, 1079833, 1123813, 1311121, 1329403, 1582439 (list; graph; listen)

	OFFSET	`0,1`
	CROSSREFS	`Cf. A039649-A039656.` `Sequence in context: A106204 A083074 A141510 this_sequence A012894 A013076 A012890` `Adjacent sequences: A039649 A039650 A039651 this_sequence A039653 A039654 A039655`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research