id:A081092 - OEIS Search Results

Search: id:A081092

Displaying 1-1 of 1 results found.

page 1

Primes having in binary representation a prime number of 1's.

+0
8

3, 5, 7, 11, 13, 17, 19, 31, 37, 41, 47, 59, 61, 67, 73, 79, 97, 103, 107, 109, 127, 131, 137, 151, 157, 167, 173, 179, 181, 191, 193, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 271, 283, 307, 313, 331, 367, 379, 397, 409, 419, 421, 431, 433, 439, 443 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A049084(A000120(a(n))) > 0; A081091, A000215, and A081093 are subsequences.`
	EXAMPLE	`15-th prime = 47 = '101111' with five 1's, therefore 47 is a term.`
	CROSSREFS	`Cf. A000040, A000120, A081093.` `Adjacent sequences: A081089 A081090 A081091 this_sequence A081093 A081094 A081095` `Sequence in context: A059362 A059264 A038604 this_sequence A030096 A045394 A070739`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 05 2003`

page 1

Search completed in 0.002 seconds

Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

AT&T Labs Research