id:A090046 - OEIS Search Results

Search: id:A090046

Displaying 1-1 of 1 results found.

page 1

Length of longest contiguous block of 0's in binary expansion of n-th prime.

+0
5

1, 0, 1, 0, 1, 1, 3, 2, 1, 1, 0, 2, 2, 1, 1, 1, 1, 1, 4, 3, 2, 2, 2, 2, 4, 2, 2, 1, 1, 3, 0, 5, 3, 3, 2, 2, 2, 3, 2, 1, 2, 1, 1, 5, 3, 3, 2, 1, 3, 2, 2, 1, 3, 1, 7, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 3, 1, 1, 4, 2, 1, 1, 1, 1, 4, 3, 3, 2, 3, 2, 1, 3, 1, 1, 5, 2, 2, 2, 2, 1, 2, 1, 2, 1, 1, 5, 5, 4, 3, 3, 3, 3, 3 (list; graph; listen)

	OFFSET	`1,7`
	COMMENT	`a(n) = A087117(A000040(n)).`
	MATHEMATICA	`f[n_] := Length[ Union[ DeleteCases[ Split[ IntegerDigits[n, 2]], 1, 2]][[ -1]]]; Table[ f[ Prime[n]], {n, 1, 105}] (from Robert G. Wilson v Dec 03 2003)`
	CROSSREFS	`Cf. A023416, A004676, A090047, A090048, A090049, A090000.` `Sequence in context: A113081 A109865 A096874 this_sequence A129267 A035103 A107889` `Adjacent sequences: A090043 A090044 A090045 this_sequence A090047 A090048 A090049`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Nov 20 2003`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research