A043030 Base-9 palindromes that start with 3.

3, 30, 246, 255, 264, 273, 282, 291, 300, 309, 318, 2190, 2280, 2370, 2460, 2550, 2640, 2730, 2820, 2910, 19686, 19767, 19848, 19929, 20010, 20091, 20172, 20253, 20334, 20424, 20505, 20586, 20667, 20748, 20829, 20910

Offset

1,1

Links

Robert P. P. McKone, Table of n, a(n) for n = 1..911

Mathematica

okQ[n_] := Module[{idn = IntegerDigits[n, 9]}, First[idn] == 3 && FromDigits[IntegerDigits[n, 9]] == FromDigits[Reverse[idn]]]; Select[Range[20910], okQ] (* Robert P. P. McKone, Aug 22 2021, after Harvey P. Dale in A043038 *)

Crossrefs

Cf. A007095, A029955, A043074.

Cf. A043038.

Sequence in context: A130546 A051133 A332426 * A178015 A120689 A359614

Adjacent sequences: A043027 A043028 A043029 * A043031 A043032 A043033

Keyword

nonn,base

Author

Clark Kimberling

Status

approved