login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A022887
n-th prime p(k) such that p(k) + p(k+4) = p(k+1) + p(k+3).
2
3, 17, 29, 47, 59, 61, 67, 79, 151, 157, 227, 233, 257, 269, 353, 367, 379, 439, 463, 541, 557, 571, 587, 593, 617, 733, 739, 743, 787, 947, 971, 991, 1021, 1031, 1097, 1103, 1217, 1277, 1289, 1301, 1321, 1429, 1499, 1549, 1597, 1601, 1607, 1621, 1663
OFFSET
1,1
LINKS
FORMULA
a(n) = A000040(A022886(n)). - R. J. Mathar, Aug 06 2015
MATHEMATICA
Transpose[Select[Partition[Prime[Range[300]], 5, 1], #[[1]]+#[[5]] == #[[2]]+#[[4]]&]][[1]] (* Harvey P. Dale, Dec 01 2015 *)
CROSSREFS
Sequence in context: A172487 A007490 A173587 * A063715 A105411 A107158
KEYWORD
nonn
EXTENSIONS
Corrected by Jud McCranie, Jan 03 2001
STATUS
approved