A067657 - OEIS

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A067657

Prime values of A001008, the numerators of the Harmonic Numbers.

3, 11, 137, 761, 7129, 18858053, 34395742267, 85691034670497533, 252476961434436524654789, 928551009361054917576341971, 42409610330030873613929048033, 4868007055309996043055960217131137 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..12.`
	FORMULA	`A001008 INTERSECT A000040.`
	MATHEMATICA	`Table[ HarmonicNumber[n], {n, 0, 80}] // Numerator // Select[#, PrimeQ]& (* Jean-François Alcover, May 27 2013 *)`
	CROSSREFS	`Sequence in context: A112957 A057205 A121897 * A063502 A329626 A072639` `Adjacent sequences: A067654 A067655 A067656 * A067658 A067659 A067660`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre, Feb 03 2002`
	STATUS	`approved`

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Last modified November 30 20:17 EST 2021. Contains 349425 sequences. (Running on oeis4.)