A100031 Bisection of A005384.

2, 5, 23, 41, 83, 113, 173, 191, 239, 281, 359, 431, 491, 593, 653, 683, 743, 809, 953, 1019, 1049, 1223, 1289, 1439, 1481, 1511, 1583, 1733, 1889, 1931, 2003, 2063, 2129, 2273, 2351, 2399, 2543, 2693, 2741, 2819, 2939, 2969, 3299, 3359, 3413, 3491, 3593

Offset: 0

Author

N. J. A. Sloane, Nov 20 2004

Keywords

• nonn
• easy

Crossrefs

Cf. A005384.

Programs

Maple

A:={}: for n from 1 to 608 do if isprime(2*ithprime(n)+1)=true then A:=A union {ithprime(n)} else A:=A fi od: B:=convert(A, list): seq(B[2*j-1],j=1..nops(B)/2);

Extensions

More terms from Emeric Deutsch, Dec 09 2004