id:A096869 - OEIS Search Results

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Difference between the n-th repunit and the next prime.

+0
4

1, 2, 2, 6, 2, 8, 40, 6, 2, 10, 2, 38, 28, 12, 118, 12, 8, 20, 60, 20, 46, 78, 6, 2, 102, 272, 80, 246, 6, 80, 102, 36, 116, 10, 36, 10, 238, 32, 20, 6, 78, 412, 88, 426, 118, 172, 48, 58, 112, 8, 56, 430, 90, 136, 240, 30, 140, 232, 162, 40, 226, 48, 116, 60, 690, 146, 210 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = A096497(n) - A002275(n) = A096499(n) - A096870(n).`
	MATHEMATICA	`NextPrim[n_] := Block[{k = n + 1}, While[ !PrimeQ[k], k++ ]; k]; Table[ NextPrim[(10^n - 1)/9] - (10^n - 1)/\ 9, {n, 70}]`
	CROSSREFS	`Cf. A096870.` `Sequence in context: A165460 A028330 A071052 this_sequence A154009 A099985 A110765` `Adjacent sequences: A096866 A096867 A096868 this_sequence A096870 A096871 A096872`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 12 2004`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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