A205511 Lesser of the n-th pair of Hamming twin primes.

2, 5, 17, 19, 29, 41, 43, 67, 97, 101, 137, 149, 163, 193, 197, 269, 281, 307, 313, 359, 379, 389, 401, 449, 457, 461, 499, 521, 569, 617, 641, 643, 673, 739, 743, 769, 809, 821, 857, 859, 881, 883, 907, 929, 937, 983, 1009, 1049, 1061, 1109, 1229, 1277, 1289, 1297

Offset: 1

Author

Vladimir Shevelev, Jan 28 2012

Keywords

• nonn
• base

Comments

The Hamming distance between a(n) and the next prime is 1, cf. A205510.

Links

• M. F. Hasler, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A205510, A205302, A205533.

Cf. A001097, A001359, A006512.

Programs

Mathematica

Select[Prime[Range[211]],Count[IntegerDigits[BitXor[#,NextPrime[#]],2],1]==1 &] (* Jayanta Basu, May 26 2013 *)

PARI

n=0;for(i=1,10^4,until(A205510(n++)==1,);write("c:/temp/b205511.txt",i" "prime(n))) \\ M. F. Hasler, Jan 29 2012

Extensions

Terms from a(11) were added by Peter J. C. Moses