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2, 3, 5, 7, 13, 17, 19, 37, 41, 53, 67, 73, 89, 97, 101, 103, 107, 131, 137, 139, 149, 163, 193, 197, 199, 211, 227, 257, 263, 269, 277, 281, 293, 307, 311, 313, 331, 389, 397, 401, 409, 419, 421, 443, 449, 461, 521, 523, 547, 557, 569, 571, 577, 587, 593
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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A090418(a(n)) = 1; subsequence of A090421.
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LINKS
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Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
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PROG
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(Haskell)
a090422 n = a090422_list !! (n-1)
a090422_list = filter ((== 1) . a090418 . fromInteger) a000040_list
-- Reinhard Zumkeller, Aug 07 2012
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CROSSREFS
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Cf. A090423, A000040, A004676, A007088.
Sequence in context: A152961 A109461 A138539 * A005109 A247980 A234851
Adjacent sequences: A090419 A090420 A090421 * A090423 A090424 A090425
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KEYWORD
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nonn,base
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AUTHOR
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Reinhard Zumkeller, Nov 30 2003
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EXTENSIONS
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Based on corrections in A090418, data recomputed by Reinhard Zumkeller, Aug 07 2012
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STATUS
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approved
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