id:A053789 - OEIS Search Results

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a(n) = A020639(A053790(n)).

+0
2

2, 2, 2, 7, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 7, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 41, 2, 3, 2, 3, 2, 3, 2, 3, 2, 59, 2, 7, 2, 3, 2, 3, 2, 7, 2, 37, 2, 2, 5, 2, 2, 89, 2, 3, 2, 3, 2, 7, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 13, 2, 109, 2, 2, 17, 2, 2, 2, 7, 2, 7, 2, 2, 7, 2 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(4) = 7 because the sum of the first 8 primes is 77 and 7 is its least prime divisor.`
	CROSSREFS	`Cf. A013918, A053790, A020639.` `Sequence in context: A098920 A129365 A021453 this_sequence A115596 A029610 A094246` `Adjacent sequences: A053786 A053787 A053788 this_sequence A053790 A053791 A053792`
	KEYWORD	`easy,nonn`
	AUTHOR	`Enoch Haga (Enokh(AT)comcast.net), Mar 27 2000`
	EXTENSIONS	`Edited by N. J. A. Sloane (njas(AT)research.att.com), Mar 16 2008, following explication by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 26 2008`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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