A082281 a(1) = 1, a(2) = 2; then a(n) = smallest number such that there are a(n-1) composite numbers between a(n) and a(n+1) exclusive.

1, 2, 5, 9, 17, 29, 52, 91, 156, 268, 456, 775, 1309, 2198, 3696, 6184, 10347, 17247, 28740, 47783, 79377, 131681, 218222, 361287, 597587, 987563, 1630852, 2691146, 4437802, 7313610

Offset

1,2

Links

Chai Wah Wu, Table of n, a(n) for n = 1..95

Crossrefs

Cf. A082278, A082279, A082280.

Sequence in context: A340668 A133470 A129696 * A285458 A000569 A292168

Adjacent sequences: A082278 A082279 A082280 * A082282 A082283 A082284

Keyword

nonn

Author

Amarnath Murthy, Apr 13 2003

Extensions

More terms from Diana L. Mecum, Jul 09 2007

Status

approved