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A093416
Index of first occurrence of prime(n) in A034694.
0
1, 2, 4, 3, 5, 12, 8, 9, 11, 7, 15, 36, 20, 21, 23, 13, 29, 60, 33, 35, 24, 39, 41, 44, 32, 25, 17, 53, 27, 56, 63, 65, 68, 69, 37, 75, 156, 81, 83, 43, 89, 45, 19, 64, 49, 99, 105, 111, 113, 57, 116, 119, 80, 125, 128, 131, 67, 135, 92, 140, 47, 73, 153, 31, 104, 79, 55, 84
OFFSET
1,2
COMMENTS
a(n) = smallest k such that A034694(k) = prime(n).
EXAMPLE
A034694(7) = 29 = prime(10) and A034694(k) <> 29 for k < 7, hence a(10) = 7.
A034694(8) = 17 = prime(7) and A034694(k) <> 17 for k < 8, hence a(7) = 8.
CROSSREFS
Cf. A034694.
Sequence in context: A245702 A297706 A374799 * A073944 A072937 A343312
KEYWORD
nonn
AUTHOR
Klaus Brockhaus, Feb 13 2006
STATUS
approved