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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 Cf. A048268, A060792, A097928, A097929, A097930, A097931, A099145, A029965, A029966, A099147, A099153. Sequence in context: A004869 A115916 A065667 * A073789 A004880 A065666 Adjacent sequences:  A099143 A099144 A099145 * A099147 A099148 A099149 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 December 7 13:08 EST 2021. Contains 349581 sequences. (Running on oeis4.)