A175683 Numbers n such that 30n-13, 30n-11, 30n-1, 30n+1, 30n+11, 30n+13 are all prime.

1, 43, 141, 720, 3038, 3466, 3772, 4068, 7896, 11402, 14070, 17499, 18683, 20887, 25166, 26586, 30311, 33237, 44072, 49791, 56629, 58268, 58764, 71483, 71953, 74284, 79939, 86022, 87199, 88941, 91951, 92273, 100176, 102019, 107505, 109438

Offset

1,2

Links

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Example

a(1)=1 because 30*1-13=17=prime, 30*1-11=19=prime, 30*1-1=29=prime, 30*1+1=31=prime, 30*1+11=41=prime, 30*1+13=43=prime.

Crossrefs

Cf. A053319.

Sequence in context: A142394 A086760 A142412 * A044375 A044756 A142573

Adjacent sequences: A175680 A175681 A175682 * A175684 A175685 A175686

Keyword

nonn

Author

Juri-Stepan Gerasimov, Aug 09 2010

Extensions

Corrected (3472 replaced by 3772, 49776 replaced by 49791) and extended by R. J. Mathar, Aug 13 2010

Status

approved