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A337423 a(n) is the least prime of the form (3^j*5^k - 1)/2, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists. 4
7, 37, 67, 337, 607, 3037, 15187, 27337, 49207, 683437, 0, 131835937, 659179687, 19929037, 35872267, 228881835937, 2491129687, 0, 0, 311391210937, 12013549804687, 0, 235357947067, 1176789735337, 0, 10591107618037, 52955538090187, 5675104819335937, 608185958862304687 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
CROSSREFS
Sequence in context: A221982 A104915 A089376 * A031395 A138906 A107938
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Aug 27 2020
STATUS
approved

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Last modified May 23 22:02 EDT 2024. Contains 372765 sequences. (Running on oeis4.)