id:A080180 - OEIS Search Results

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a(1)=1, a(n+1)=a(n)+spf(Sum(a(i): 1<=i<=n)), where spf=A020639 (smallest prime factor).

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1, 2, 5, 7, 10, 15, 17, 20, 27, 29, 36, 49, 51, 320, 339, 341, 344, 1957, 1959, 1962, 1965, 1967, 13390, 13393, 13395, 13406, 13409, 13411, 13414, 13433, 13435, 145544, 145547, 145549, 145552, 145559, 145561, 146040, 146057, 146059, 146090, 146093 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n+1)=a(n)+spf(A080181(n)) for n>0.`
	CROSSREFS	`Cf. A080182.` `Sequence in context: A018406 A018483 A018270 this_sequence A159942 A102339 A103871` `Adjacent sequences: A080177 A080178 A080179 this_sequence A080181 A080182 A080183`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 05 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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