id:A080522 - OEIS Search Results

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Leading diagonal of triangle in A080521.

+0
2

1, 3, 5, 10, 22, 49, 107, 228, 476, 979, 1993, 4030, 8114, 16293, 32663, 65416, 130936, 261991, 524117, 1048386, 2096942, 4194073, 8388355, 16776940, 33554132, 67108539, 134217377, 268435078, 536870506, 1073741389, 2147483183 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=2^n-(n-1)*(n-2)/2-n+1 for n>1 - Lambert Herrgesell (zero815(AT)googlemail.com), Mar 14 2006`
	CROSSREFS	`Cf. A080521.` `Sequence in context: A018107 A053709 A018005 this_sequence A132332 A002039 A007695` `Adjacent sequences: A080519 A080520 A080521 this_sequence A080523 A080524 A080525`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 21 2003`
	EXTENSIONS	`More terms from Lambert Herrgesell (zero815(AT)googlemail.com), Mar 14 2006`

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

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