id:A084250 - OEIS Search Results

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Let a(1) = 1; for n>1, let a(n) be smallest positive integer distinct from all earlier terms such that exp(sum(n>=1,a(n)*x^n/n)) has integer coefficients (cf. A084251).

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1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 23, 16, 14, 10, 9, 31, 35, 21, 20, 2, 11, 25, 24, 48, 56, 42, 40, 70, 30, 27, 32, 63, 26, 37, 83, 61, 38, 22, 17, 50, 124, 19, 44, 29, 108, 72, 95, 64, 57, 68, 89, 46, 54, 102, 28, 78, 80, 90, 60, 71, 62, 34, 146, 127, 84, 100, 135, 41, 96, 165 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A permutation of the natural numbers.`
	FORMULA	`Exp(sum(n>=1, a(n)x^n/n)) = sum(n>=0, A084251(n)x^n).`
	CROSSREFS	`Cf. A084251.` `Sequence in context: A097012 A000203 A003979 this_sequence A090128 A086293 A003981` `Adjacent sequences: A084247 A084248 A084249 this_sequence A084251 A084252 A084253`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), May 22 2003. Revised May 29, 2003`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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