A081867 - OEIS

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A081867

a(n)=sigma_11(2n-1).

1, 177148, 48828126, 1977326744, 31381236757, 285311670612, 1792160394038, 8649804864648, 34271896307634, 116490258898220, 350279478046112, 952809757913928, 2384185839843751, 5559091947792280, 12200509765705830 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A013959.` `Sequence in context: A017315 A017435 A017567 * A133972 A056748 A186062` `Adjacent sequences: A081864 A081865 A081866 * A081868 A081869 A081870`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 12 2003`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.