A095970 If p(k) is the k-th prime, then the n-th set of 3 consecutive cousin prime pairs starts at p(a(n)).

4, 25, 27, 147, 149, 151, 247, 1037, 1276, 1828, 1830, 1866, 1868, 2198, 3021, 4012, 4558, 5543, 6879, 7381, 10805, 12701, 17461, 18136, 18202, 18814, 18816, 19121, 19448, 20033, 20035, 20562, 20887, 21051, 22491, 26397, 26399, 27139, 30837

Offset

1,1

Links

Table of n, a(n) for n=1..39.

Example

a(7)=247: p(247)=1567 and p(248)=1571, the first cousin prime pair; p(249)=1579 and p(250)=1583, the second cousin prime pair; p(251)=1597 and p(252)=1601, the third cousin prime pair.

Crossrefs

Sequence in context: A043067 A289273 A309056 * A297963 A020221 A042889

Adjacent sequences: A095967 A095968 A095969 * A095971 A095972 A095973

Keyword

nonn

Author

Ray G. Opao, Jul 15 2004

Status

approved