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A044995 Numbers n with property that in base 3 representation the numbers of 0's and 2's are 1 and 1, respectively. 1
6, 11, 15, 19, 21, 32, 34, 38, 42, 46, 48, 58, 64, 66, 95, 97, 103, 113, 115, 119, 123, 127, 129, 139, 145, 147, 175, 193, 199, 201, 284, 286, 292, 310, 338, 340, 346, 356, 358, 362, 366, 370, 372, 382, 388, 390, 418, 436, 442, 444 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

F:= proc(n) local i, j, t;

t:= (3^n-1)/2;

op(sort([seq(seq(t - 3^i + 3^j, i= {$0..j-1, $j+1..n-2}), j=0..n-1)]))

end proc:

map(F, [$2..7]); # Robert Israel, Mar 11 2020

CROSSREFS

Sequence in context: A315394 A043098 A039276 * A135708 A315395 A315396

Adjacent sequences:  A044992 A044993 A044994 * A044996 A044997 A044998

KEYWORD

nonn,base,look

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 17 22:15 EDT 2021. Contains 343992 sequences. (Running on oeis4.)