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A099146 Numbers in base 10 that are palindromic in bases 8 and 9. 21
0, 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; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Intersection of A029803 and A029955. - Michel Marcus, Oct 09 2014
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..54 (first 41 terms from Robert G. Wilson v)
EXAMPLE
227 is in the sequence because 227_10 = 343_8 = 272_9.
MATHEMATICA
palQ[n_Integer, base_Integer] := Block[{idn = IntegerDigits[n, base]}, idn == Reverse[ idn]]; Select[ Range[ 250000000], palQ[ #, 8] && palQ[ #, 9] &]
CROSSREFS
Sequence in context: A004869 A115916 A065667 * A073789 A004880 A065666
KEYWORD
base,nonn
AUTHOR
Robert G. Wilson v, Sep 30 2004
EXTENSIONS
Term 0 prepended by Robert G. Wilson v, Oct 08 2014
STATUS
approved

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Last modified March 29 06:57 EDT 2024. Contains 371265 sequences. (Running on oeis4.)