A099145 Numbers in base 10 that are palindromic in bases 7 and 8.

0, 1, 2, 3, 4, 5, 6, 121, 178, 235, 292, 300, 2997, 6953, 7801, 10658, 13459, 16708, 428585, 431721, 444713, 447849, 450985, 502457, 626778, 786435, 10453500, 27924649

Offset: 1

Author

Robert G. Wilson v, Sep 30 2004

Keywords

• base
• nonn

Comments

Intersection of A029954 and A029803. - Michel Marcus, Oct 09 2014

Examples

			178 is in the sequence because 178_10 = 343_7 = 262_8.
		

Links

• Giovanni Resta, Table of n, a(n) for n = 1..48 (first 37 terms from Robert G. Wilson v)

Crossrefs

Cf. A048268, A060792, A097928, A097929, A097930, A097931, A099146, A029965, A029966, A099147, A099153.

Programs

Mathematica

palQ[n_Integer, base_Integer] := Block[{idn = IntegerDigits[n, base]}, idn == Reverse[ idn]]; Select[ Range[ 150000000], palQ[ #, 7] && palQ[ #, 8] &]