id:A068309 - OEIS Search Results

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Number of different lucky numbers occurring when 2n is expressed as p1+q1 = ... = pk+qk where pk,qk are lucky numbers with pk <= qk.

+0
1

1, 2, 1, 2, 4, 2, 3, 6, 3, 2, 6, 4, 3, 6, 3, 4, 8, 4, 6, 8, 3, 6, 10, 2, 7, 10, 4, 6, 10, 2, 5, 10, 5, 6, 10 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`n=5: 10 = 1+9 = 3+7, we can see 4 different lucky numbers. so a(5) = 4.`
	CROSSREFS	`Cf. A000959, A002850.` `Sequence in context: A058573 A117268 A119538 this_sequence A099470 A099254 A121339` `Adjacent sequences: A068306 A068307 A068308 this_sequence A068310 A068311 A068312`
	KEYWORD	`easy,nonn`
	AUTHOR	`Naohiro Nomoto (n_nomoto(AT)yabumi.com), Feb 25 2002`

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