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A357908
Index of the first occurrence of n-th prime in Van Eck's sequence (A181391), or 0 if n-th prime never appears.
0
5, 20, 12, 66, 44, 121, 41, 89, 101, 225, 72, 92, 548, 199, 297, 1486, 490, 1001, 735, 455, 420, 611, 772, 673, 187, 1612, 3690, 581, 417, 2584, 7574, 162, 1483, 1048, 689, 330, 1320, 4007, 3739, 2884, 528, 3376, 3045, 3658, 2869, 411, 935, 303, 1751, 1122, 376, 5506, 599, 13191, 494
OFFSET
1,1
COMMENTS
The first 85669653 terms exist and are less than 10^12, see A181391. - Charles R Greathouse IV, Nov 09 2022
FORMULA
a(n) > prime(n). - Charles R Greathouse IV, Nov 09 2022
EXAMPLE
a(3) = 12 because position 12 of Van Eck's sequence (A181391) is the first occurrence of 3rd prime number, i.e., 5.
CROSSREFS
Cf. A181391.
Sequence in context: A199363 A199588 A359977 * A030696 A227109 A243800
KEYWORD
nonn
AUTHOR
G. L. Honaker, Jr., Nov 08 2022
STATUS
approved