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A093416 Index of first occurrence of prime(n) in A034694. +0
2
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 (list; graph; listen)
OFFSET

1,2

COMMENT

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: A091449 A100834 A100826 this_sequence A073944 A072937 A129509

Adjacent sequences: A093413 A093414 A093415 this_sequence A093417 A093418 A093419

KEYWORD

nonn

AUTHOR

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Feb 13 2006

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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