A087376 Leading diagonal of A087377.

1, 2, 6, 7, 14, 7, 30, 24, 30, 19, 60, 23, 72, 33, 46, 48, 90, 34, 124, 51, 82, 64, 144, 67, 148, 78, 118, 87, 240, 58, 232, 113, 150, 114, 200, 88, 288, 165, 202, 138, 332, 91, 352, 167, 202, 163, 384, 136, 372, 143, 258, 195, 500, 142, 360, 207, 318, 226, 552, 137

Offset

1,2

Links

Ivan Neretin, Table of n, a(n) for n = 1..1000

Formula

Conjecture: a(n) < n^2.

Mathematica

f = Function[n, k = cnt = 0; While[cnt < n, k++; If[PrimeQ[k n + 1], cnt++]]; k]; Table[f[n], {n, 60}] (* Ivan Neretin, May 22 2015 *)

Crossrefs

Cf. A034693, A087377.

Sequence in context: A127406 A092310 A306924 * A199974 A176279 A265739

Adjacent sequences: A087373 A087374 A087375 * A087377 A087378 A087379

Keyword

nonn

Author

Amarnath Murthy, Sep 09 2003

Extensions

More terms from David Wasserman, May 24 2005

Status

approved