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 A241673 Where powers of 2 occur in A229037. 3
 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 24, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51, 56, 57, 64, 69, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 96, 97, 98, 99, 100, 101 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS A209229(A229037(a(n))) = 1. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 EXAMPLE .    n  |    a(n)  | A229037(a(n))=2^k |    k . ------+----------+-------------------+------ .    1  |       1  |             1     |    0 .    3  |       3  |             2     |    1 .    8  |       8  |             4     |    2 .   22  |      24  |             8     |    3 .   92  |     196  |            16     |    4 .  139  |     387  |            32     |    5 .  155  |     516  |            64     |    6 .  250  |    1274  |           128     |    7 .  371  |    3590  |           256     |    8 .  560  |    9309  |           512     |    9 .  851  |   23654  |          1024     |   10 . PROG (Haskell) a241673 n = a241673_list !! (n-1) a241673_list = filter ((== 1) . a209229 . a229037) [1..] CROSSREFS Cf. A236246 (subsequence). Sequence in context: A076499 A092629 A246101 * A258009 A108192 A250395 Adjacent sequences:  A241670 A241671 A241672 * A241674 A241675 A241676 KEYWORD nonn AUTHOR Reinhard Zumkeller, Apr 26 2014 STATUS approved

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Last modified October 17 14:56 EDT 2018. Contains 316282 sequences. (Running on oeis4.)