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A375502
a(n) is the minimal number of parallel straight lines needed to intersect all points (k, prime(k)) for k = 1..n (where prime(k) denotes the k-th prime number).
1
1, 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 9, 9, 10, 11, 11, 12, 12, 13, 14, 14, 15, 16, 16, 16, 17, 18, 18, 19, 19, 19, 19, 20, 21, 21, 22, 22, 22, 22, 22, 22, 23, 24, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26
OFFSET
1,3
LINKS
Rémy Sigrist, PARI program
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Aug 18 2024
STATUS
approved