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A099146 Numbers in base 10 that are palindromic in bases 8 and 9. 21

%I

%S 0,1,2,3,4,5,6,7,154,227,300,373,446,455,11314,12547,17876,27310,

%T 889435,894619,899803,926371,1257716,1262900,1268084,1273268,1294652,

%U 1368461,1373645,1405397,2067519,63367795,71877268,98383349

%N Numbers in base 10 that are palindromic in bases 8 and 9.

%C Intersection of A029803 and A029955. - _Michel Marcus_, Oct 09 2014

%H Giovanni Resta, <a href="/A099146/b099146.txt">Table of n, a(n) for n = 1..54</a> (first 41 terms from Robert G. Wilson v)

%e 227 is in the sequence because 227_10 = 343_8 = 272_9.

%t palQ[n_Integer, base_Integer] := Block[{idn = IntegerDigits[n, base]}, idn == Reverse[ idn]]; Select[ Range[ 250000000], palQ[ #, 8] && palQ[ #, 9] &]

%Y Cf. A048268, A060792, A097928, A097929, A097930, A097931, A099145, A029965, A029966, A099147, A099153.

%K base,nonn

%O 1,3

%A _Robert G. Wilson v_, Sep 30 2004

%E Term 0 prepended by _Robert G. Wilson v_, Oct 08 2014

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Last modified August 3 18:51 EDT 2020. Contains 336201 sequences. (Running on oeis4.)