id:A118235 - OEIS Search Results

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Smallest number summing up to n together with some succeeding consecutive numbers.

+0
7

1, 2, 1, 4, 2, 1, 3, 8, 2, 1, 5, 3, 6, 2, 1, 16, 8, 3, 9, 2, 1, 4, 11, 7, 3, 5, 2, 1, 14, 4, 15, 32, 3, 7, 2, 1, 18, 8, 4, 6, 20, 3, 21, 2, 1, 10, 23, 15, 4, 8, 6, 3, 26, 2, 1, 5, 7, 13, 29, 4, 30, 14, 3, 64, 2, 1, 33, 5, 9, 7, 35, 4, 36, 17, 3, 6, 2, 1, 39, 14, 5, 19, 41, 7, 4, 20, 12, 3, 44, 2, 1, 8 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A109814(n) * (A109814(n) + 2a(n) - 1) / 2 = n.` `a(m) = n iff m = 2^k: a(A000079(n)) = A000079(n);` `a(m) = 1 iff m = k(k+1)/2: a(A000217(n)) = 1.`
	CROSSREFS	`Cf. A001227.` `Sequence in context: A013942 A088423 A006839 this_sequence A083653 A135152 A147542` `Adjacent sequences: A118232 A118233 A118234 this_sequence A118236 A118237 A118238`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 18 2006`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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