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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
OFFSET
1,2
COMMENTS
Positions of records: 1, 3, 7, 9, 11, 41, 109, 151, 647, ... (A263926).
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
Sequence in context: A138639 A082473 A325177 * A346587 A226818 A113462
KEYWORD
nonn
AUTHOR
Zak Seidov, Oct 19 2015
STATUS
approved