id:A086337 - OEIS Search Results

Search: id:A086337

Displaying 1-1 of 1 results found.

page 1

Numbers n such that n, n-1 and n-2 have the same prime signature.

+0
1

35, 87, 95, 143, 203, 215, 219, 303, 395, 447, 635, 699, 923, 1043, 1139, 1263, 1311, 1347, 1403, 1643, 1763, 1839, 1887, 1895, 1943, 1983, 2015, 2103, 2183, 2219, 2307, 2363, 2435, 2463, 2519, 2643, 2667, 2723, 2735, 3099, 3387, 3603, 3695, 3731, 3867 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`PrimeFactorExponents[n_] := Flatten[ Table[ # [[2]], {1}] & /@ FactorInteger[n]]; Select[ Range[3902], PrimeFactorExponents[ # ] == PrimeFactorExponents[ # - 1] & ]`
	CROSSREFS	`Cf. A083793.` `Sequence in context: A044554 A119691 A115393 this_sequence A118631 A020295 A020164` `Adjacent sequences: A086334 A086335 A086336 this_sequence A086338 A086339 A086340`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 01 2003`

page 1

Search completed in 0.002 seconds

Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

AT&T Labs Research