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A031290
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Position of n-th 3 in A007376.
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12
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3, 17, 37, 50, 52, 54, 56, 57, 58, 60, 62, 64, 66, 68, 77, 97, 117, 137, 157, 177, 201, 231, 261, 281, 284, 287, 290, 291, 293, 296, 299, 302, 305, 308, 321, 351, 381, 411, 441, 471, 501, 531, 561, 581, 584, 587, 590, 591, 593, 596
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| A007376(a(n)) = 3.
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LINKS
| Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
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PROG
| (Haskell)
import Data.List (elemIndices)
a031290 n = a031290_list !! (n-1)
a031290_list = map (+ 1) $ elemIndices 3 a007376_list
-- Reinhard Zumkeller, Jul 28 2011
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CROSSREFS
| Cf. A193428; A031287, A031288, A031289, A031291, A031292, A031293, A031294, A031295, A031296.
Sequence in context: A115355 A146021 A146133 * A152908 A031386 A146813
Adjacent sequences: A031287 A031288 A031289 * A031291 A031292 A031293
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KEYWORD
| nonn,less,base
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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