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A171954 Positions of 4's in A181391. 1
17, 26, 58, 65, 107, 120, 127, 131, 132, 140, 144, 145, 154, 158, 159, 166, 185, 189, 190, 214, 220, 234, 238, 239, 248, 267, 290, 299, 301, 323, 326, 336, 340, 341, 350, 359, 373, 382, 434, 438, 439, 446, 452, 458, 464, 477, 481, 482, 496 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..1035

CROSSREFS

Cf. A181391, A171865, A171951-A171956.

Sequence in context: A120143 A031204 A085051 * A154277 A140150 A166658

Adjacent sequences:  A171951 A171952 A171953 * A171955 A171956 A171957

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 29 2010

STATUS

approved

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Last modified May 22 00:25 EDT 2019. Contains 323472 sequences. (Running on oeis4.)