A029963 Palindromic in bases 6 and 10.

0, 1, 2, 3, 4, 5, 7, 55, 111, 141, 191, 343, 434, 777, 868, 1441, 7667, 7777, 22022, 39893, 74647, 168861, 808808, 909909, 1867681, 3097903, 4232324, 4265624, 4298924, 4516154, 4565654, 4598954, 4849484, 5100015, 5182815, 5400045

Offset: 1

Author

Patrick De Geest

Keywords

• nonn
• base

Links

• Robert G. Wilson v, Table of n, a(n) for n = 1..102
• P. De Geest, Palindromic numbers beyond base 10

Crossrefs

Cf. A007632, A007633, A029804, A029961, A029962, A029964, A029965, A029966, A029967, A029968, A029969, A029970.

Programs

Mathematica

palQ[n_Integer, base_Integer] := Block[{idn = IntegerDigits[n, base]}, idn == Reverse[idn]]; Select[ Range[10^7], palQ[ #, 6] && palQ[ #, 10] &] (* Robert G. Wilson v Sep 30 2004 *)
Select[Range[0, 10^5],
PalindromeQ[#] && # == IntegerReverse[#, 6] &] (* Robert Price, Nov 09 2019 *)