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A043030
Base-9 palindromes that start with 3.
1
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
KEYWORD
nonn,base
STATUS
approved