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A263312 Records in A263455. 1
1, 2, 6, 8, 12, 22, 40, 48, 58, 60, 68, 100, 102, 132, 144, 162, 170, 230, 234, 238, 282, 306, 336, 338, 396, 418, 460, 528, 550, 552, 612, 660 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Positions of records: 1, 3, 7, 9, 11, 41, 109, 151, 647, ... (A263926).

LINKS

Table of n, a(n) for n=1..32.

MATHEMATICA

a=2; ma=0; Reap[Do[k=1; While[!PrimeQ[b=a+k*n], k++]; a=b; If[k>ma, ma=k; Sow[ma]], {n, 10^6}]][[2, 1]]

CROSSREFS

Cf. A263455, A263926.

Sequence in context: A138639 A082473 A325177 * A346587 A226818 A113462

Adjacent sequences:  A263309 A263310 A263311 * A263313 A263314 A263315

KEYWORD

nonn

AUTHOR

Zak Seidov, Oct 19 2015

STATUS

approved

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Last modified May 26 17:16 EDT 2022. Contains 354092 sequences. (Running on oeis4.)