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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

Robert G. Wilson v and 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 March 28 02:40 EDT 2017. Contains 284182 sequences.