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

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

Offset: 1

Author

Robert G. Wilson v, Sep 30 2004

Keywords

• base
• nonn

Comments

Intersection of A029803 and A029955. - Michel Marcus, Oct 09 2014

Examples

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

Links

• Giovanni Resta, Table of n, a(n) for n = 1..54 (first 41 terms from Robert G. Wilson v)

Crossrefs

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

Programs

Mathematica

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

Extensions

Term 0 prepended by Robert G. Wilson v, Oct 08 2014