id:A161832 - OEIS Search Results

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a(n) = (A161830(n+1)-1)/2.

+0
4

0, 1, 2, 4, 5, 7, 9, 13, 15, 17, 19, 23, 26, 30, 35, 44, 49, 51 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`The sequence gives the number of Y-Toothpick in the sieve after n rounds. A161833 (the first differences) gives the number added at the nth round.` `See the Y-Toothpick sequence A160120 and A161830 for more information.`
	CROSSREFS	`Cf. A139250, A160120, A160406, A161830, A161831, A161833.` `Sequence in context: A062428 A056833 A105771 this_sequence A078404 A056908 A060565` `Adjacent sequences: A161829 A161830 A161831 this_sequence A161833 A161834 A161835`
	KEYWORD	`more,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Jun 20 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.