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A171953 Positions of 3's in A181391. 1
20, 22, 28, 33, 38, 46, 49, 50, 61, 68, 70, 76, 78, 86, 94, 103, 201, 204, 205, 217, 230, 256, 259, 260, 281, 327, 369, 391, 394, 395, 403, 422, 492, 550, 575, 583, 672, 675, 676, 740, 804, 815, 843, 1103, 1165, 1488, 1491, 1492, 1543, 1668 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..143

CROSSREFS

Cf. A181391, A171865, A171951-A171956.

Sequence in context: A094203 A095439 A036227 * A133260 A163630 A259735

Adjacent sequences:  A171950 A171951 A171952 * A171954 A171955 A171956

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 29 2010

STATUS

approved

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Last modified April 18 06:48 EDT 2019. Contains 322209 sequences. (Running on oeis4.)