A008580 - OEIS

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A008580

Crystal ball sequence for planar net 3.6.3.6.

1, 5, 13, 27, 45, 67, 95, 125, 163, 201, 249, 295, 353, 407, 475, 537, 615, 685, 773, 851, 949, 1035, 1143, 1237, 1355, 1457, 1585, 1695, 1833, 1951, 2099, 2225, 2383, 2517, 2685, 2827, 3005, 3155, 3343 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..1000` `Index entries for crystal ball sequences`
	FORMULA	`G.f.: [(1+2x)(1+2x+2x^2+2x^3-x^4)]/[(1-x)^3(1+x)^2]. - R. Stephan, Apr 24 2004`
	CROSSREFS	`Sequence in context: A160420 A182840 A147411 * A123326 A025193 A002717` `Adjacent sequences: A008577 A008578 A008579 * A008581 A008582 A008583`
	KEYWORD	`nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.