id:A090420 - OEIS Search Results

Search: id:A090420

Displaying 1-1 of 1 results found.

page 1

Numbers having a unique representation as concatenation of primes in binary.

+0
3

2, 3, 5, 7, 13, 15, 17, 19, 21, 37, 41, 53, 55, 67, 73, 81, 89, 91, 97, 101, 103, 107, 111, 115, 123, 131, 137, 139, 141, 143, 149, 159, 163, 165, 169, 171, 177, 193, 197, 199, 211, 215, 219, 221, 227, 235, 243, 245, 257, 263, 269, 277, 281, 285, 293, 295, 301 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A090418(a(n)) = 1; subsequence of A090421.`
	CROSSREFS	`Cf. A004676, A007088.` `Sequence in context: A067836 A108546 A065107 this_sequence A031344 A004682 A024783` `Adjacent sequences: A090417 A090418 A090419 this_sequence A090421 A090422 A090423`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 30 2003`

page 1

Search completed in 0.002 seconds

Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research