A263312 Records in A263455.

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

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