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Search: id:A099146
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| A099146 |
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Numbers in base 10 that are palindromic in bases 8 and 9. |
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+0
3
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| 1, 2, 3, 4, 5, 6, 7, 154, 227, 300, 373, 446, 455, 11314, 12547, 17876, 27310, 889435, 894619, 899803, 926371, 1257716, 1262900, 1268084, 1273268, 1294652, 1368461, 1373645, 1405397, 2067519, 63367795, 71877268, 98383349
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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227 is in the sequence because 227_10 = 343_8 = 272_9.
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MATHEMATICA
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palQ[n_Integer, base_Integer] := Block[{idn = IntegerDigits[n, base]}, idn == Reverse[ idn]]; Select[ Range[ 250000000], palQ[ #, 8] && palQ[ #, 9] &]
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CROSSREFS
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Cf. A048268, A060792, A097928, A097929, A097930, A097931, A099145, A029965, A029966, A099147, A099153.
Sequence in context: A004869 A115916 A065667 this_sequence A073789 A004880 A065666
Adjacent sequences: A099143 A099144 A099145 this_sequence A099147 A099148 A099149
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KEYWORD
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base,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 30 2004
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