id:A069506 - OEIS Search Results

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a(1) = 2; a(n) = smallest palindromic number of the form k*a(n-1) + 1 with k > 1.

+0
6

2, 5, 11, 111, 1111, 11111, 111111, 1111111, 11111111, 111111111, 1111111111, 11111111111, 111111111111, 1111111111111, 11111111111111, 111111111111111, 1111111111111111, 11111111111111111, 111111111111111111 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`a(n) = {10^(n-1)-1}/9 for n > 2.`
	CROSSREFS	`Cf. A069505, A069507, A069508, A069509, A069510.` `Sequence in context: A134998 A078790 A158999 this_sequence A123165 A098438 A064772` `Adjacent sequences: A069503 A069504 A069505 this_sequence A069507 A069508 A069509`
	KEYWORD	`nonn,base`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 30 2002.`
	EXTENSIONS	`More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 11 2003.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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