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A093016
First occurrence of n in A092928, or 0 if n does not occur.
1
1, 3, 5, 0, 37, 24, 57, 14, 35, 47, 71, 101, 17, 56, 45, 105, 181, 116, 159, 191, 164, 199, 41, 115, 459, 59, 104, 607, 167, 644, 235, 482, 855, 440, 431, 445, 356, 1577, 1773, 297, 362, 433, 236, 2230, 743, 264, 667, 566, 385, 1378, 836, 398, 428, 461, 987, 779
OFFSET
0,2
COMMENTS
a(3) = 0 since n(n-1)(n-2)(n-3) + 1 = (n^2 - 3n + 1)^2 cannot be prime.
CROSSREFS
Sequence in context: A306637 A111823 A113039 * A031018 A146525 A196611
KEYWORD
nonn
AUTHOR
Ray Chandler, Mar 27 2004
STATUS
approved