A091052 - OEIS

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A091052

Record values in A091023.

1, 2, 13, 26, 205, 410, 3277, 6554, 52429, 104858, 838861, 1677722, 13421773, 26843546, 214748365, 429496730, 3435973837, 6871947674, 54975581389, 109951162778, 879609302221, 1759218604442, 14073748835533, 28147497671066 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	FORMULA	`Add 1 to every term of A077854, then take the terms with indices 4k and 4k+3.` `(1/20) [34^n - (-4)^n + 2(-1)^n + 6]. - R. Stephan, Dec 02 2004`
	CROSSREFS	`Cf. A091023, A091053.` `Sequence in context: A018745 A117983 A018400 * A031090 A041017 A033837` `Adjacent sequences: A091049 A091050 A091051 * A091053 A091054 A091055`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Feb 23 2004`
	EXTENSIONS	`More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Feb 23 2006`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.