id:A091931 - OEIS Search Results

Search: id:A091931

Displaying 1-1 of 1 results found.

page 1

A091931

Change the first bit to 0 in binary notation for the n-th prime.

+0
2

0, 1, 1, 3, 3, 5, 1, 3, 7, 13, 15, 5, 9, 11, 15, 21, 27, 29, 3, 7, 9, 15, 19, 25, 33, 37, 39, 43, 45, 49, 63, 3, 9, 11, 21, 23, 29, 35, 39, 45, 51, 53, 63, 65, 69, 71, 83, 95, 99, 101, 105, 111, 113, 123, 1, 7, 13, 15, 21, 25, 27, 37, 51, 55, 57, 61, 75, 81, 91, 93, 97, 103 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`a(n) = A053645(A000040(n)).`
	FORMULA	`a(n) = A000040(n) - 2^(A035100(n)-1).`
	CROSSREFS	`Cf. A091932.` `Sequence in context: A067462 A021753 A062563 this_sequence A109824 A011399 A079887` `Adjacent sequences: A091928 A091929 A091930 this_sequence A091932 A091933 A091934`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 14 2004`

page 1

Search completed in 0.002 seconds

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research