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A043039 Palindromes that start with 4. 1
4, 44, 404, 414, 424, 434, 444, 454, 464, 474, 484, 494, 4004, 4114, 4224, 4334, 4444, 4554, 4664, 4774, 4884, 4994, 40004, 40104, 40204, 40304, 40404, 40504, 40604, 40704, 40804, 40904, 41014, 41114, 41214, 41314, 41414, 41514, 41614, 41714, 41814, 41914 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
palQ[n_Integer, base_Integer] := Module[{idn = IntegerDigits[n, base]}, idn == Reverse[idn]]; Select[Range[0, 100000], IntegerDigits[#][[1]] == 4 && palQ[#, 10] &] (* T. D. Noe, Mar 12 2013 *)
CROSSREFS
Sequence in context: A341590 A297384 A178294 * A198962 A002754 A187870
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)