id:A093361 - OEIS Search Results

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Add/multiply sequence.

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1

1, 3, 7, 11, 27, 33, 69, 77, 141, 151, 251, 263, 407, 421, 617, 633, 889, 907, 1231, 1251, 1651, 1673, 2157, 2181, 2757, 2783, 3459, 3487, 4271, 4301, 5201, 5233, 6257, 6291, 7447, 7483, 8779, 8817, 10261, 10301, 11901, 11943, 13707, 13751 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`(1/24) [4n^3 + 12n^2 + 20n + 33 + (6n^2-9)*(-1)^n ]. - R. Stephan, Dec 02 2004`
	EXAMPLE	`a(0) = 1` `a(1) = 1+2` `a(2) = 1+23` `a(3) = 1+23+4` `a(4) = 1+23+45` `a(5) = 1+23+45+6` `a(6) = 1+23+45+67` `a(7) = 1+23+45+67+8` `a(8) = 1+23+45+67+89`
	CROSSREFS	`Sequence in context: A024459 A001645 A103798 this_sequence A051202 A035095 A125878` `Adjacent sequences: A093358 A093359 A093360 this_sequence A093362 A093363 A093364`
	KEYWORD	`nonn`
	AUTHOR	`Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Apr 28 2004`
	EXTENSIONS	`More terms from R. Stephan, Dec 02 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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