A075343 a(1) = 1, a(n+1) is the smallest number such that there are n composite numbers between a(n) and a(n+1) exclusive.

1, 5, 9, 15, 22, 29, 37, 47, 57, 70, 85, 99, 117, 133, 151, 170, 190, 213, 236, 260, 287, 311, 337, 365, 395, 426, 459, 493, 527, 560, 597, 636, 676, 715, 756, 797, 841, 886, 929, 975, 1024, 1074, 1125, 1174, 1226, 1277, 1335, 1387, 1443, 1504, 1562, 1625

Offset

1,2

Comments

Conjecture: there exists a prime between consecutive terms.

Links

Table of n, a(n) for n=1..52.

Crossrefs

Cf. A075342, A075344.

Sequence in context: A179187 A315080 A315081 * A212865 A102176 A315082

Adjacent sequences: A075340 A075341 A075342 * A075344 A075345 A075346

Keyword

nonn

Author

Amarnath Murthy, Sep 18 2002

Extensions

More terms from Sascha Kurz, Jan 30 2003

Status

approved