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A031290 Position of n-th 3 in A007376. 12
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; text; internal format)
OFFSET
1,1
COMMENTS
A007376(a(n)) = 3.
LINKS
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
CROSSREFS
Sequence in context: A146133 A297735 A266062 * A152908 A031386 A146813
KEYWORD
nonn,less,base
AUTHOR
STATUS
approved

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)