id:A039912 - OEIS Search Results

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Triangle related to number of compositions of n into relatively prime summands.

+0
2

1, 1, -2, 1, -3, 4, 1, -4, 6, -8, 1, -5, 10, -9, 16, 1, -6, 15, -20, 9, -32, 1, -7, 21, -35, 36, 0, 64, 1, -8, 28, -56, 70, -64, -27, -128, 1, -9, 36, -84, 126, -125, 120, 81, 256, 1, -10, 45, -120, 210, -252, 200, -240, -162, -512, 1, -11, 55, -165, 330, -462, 463, -275, 496, 243, 1024, 1, -12, 66, -220, 495, -792, 924 (list; graph; listen)

	OFFSET	`2,3`
	REFERENCES	`H. W. Gould, Binomial coefficients, the bracket function and compositions with relatively prime summands, Fib. Quart. 2 (1964), 2.`
	CROSSREFS	`Cf. A126713.` `Sequence in context: A104471 A085643 A132110 this_sequence A163311 A008949 A076832` `Adjacent sequences: A039909 A039910 A039911 this_sequence A039913 A039914 A039915`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 26 2008`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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