A080330 - OEIS

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A080330

Index in A002858 of the smaller of the two Ulam numbers that sum to the n-th Ulam number.

0, 0, 1, 1, 2, 2, 3, 2, 3, 2, 6, 2, 6, 2, 7, 1, 5, 4, 11, 9, 3, 6, 8, 10, 12, 2, 3, 4, 6, 18, 19, 13, 16, 3, 17, 20, 2, 3, 2, 24, 6, 11, 3, 8, 2, 15, 2, 3, 2, 15, 20, 2, 8, 27, 13, 25, 3, 6, 18, 2, 15, 2, 15, 25, 11, 6, 10, 2, 17, 3, 2, 15, 2, 3, 27, 20, 15, 20, 2, 25, 27, 42, 2, 15 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	COMMENTS	`The first two are zero because the Ulam sequence (A002858) is initialized for those terms. The terms of the sum are in A080328 and A080329 and the indices are in A080330 and A080331.`
	EXAMPLE	`The 11th Ulam number (26) is the sum of the 6th Ulam number (8) and the 10th Ulam number (18), so a(11)=6.`
	CROSSREFS	`Cf. A002858, A080328, A080329, A080331.` `Sequence in context: A096013 A072380 A144910 * A152872 A072832 A080328` `Adjacent sequences: A080327 A080328 A080329 * A080331 A080332 A080333`
	KEYWORD	`nonn`
	AUTHOR	`Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Feb 15 2003`

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.