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A087376 Leading diagonal of A087377. 2
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified April 1 14:18 EDT 2020. Contains 333159 sequences. (Running on oeis4.)