A013709 - OEIS

This site is supported by donations to The OEIS Foundation.

A013709

4^(2n+1).

4, 64, 1024, 16384, 262144, 4194304, 67108864, 1073741824, 17179869184, 274877906944, 4398046511104, 70368744177664, 1125899906842624, 18014398509481984, 288230376151711744, 4611686018427387904 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..200` `Tanya Khovanova, Recursive Sequences`
	FORMULA	`a(n)=16a(n-1), n>0 ; a(0)=4 . G.f.: 4/(1-16x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 23 2008]`
	PROG	`(MAGMA) [4^(2*n+1): n in [0..20]]; // Vincenzo Librandi, May 26 2011`
	CROSSREFS	`Sequence in context: A026301 A010042 A154021 * A139292 A152923 A085807` `Adjacent sequences: A013706 A013707 A013708 * A013710 A013711 A013712`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 08:34 EST 2012. Contains 205998 sequences.