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 A248365 4n concatenated with itself. 1
 44, 88, 1212, 1616, 2020, 2424, 2828, 3232, 3636, 4040, 4444, 4848, 5252, 5656, 6060, 6464, 6868, 7272, 7676, 8080, 8484, 8888, 9292, 9696, 100100, 104104, 108108, 112112, 116116, 120120, 124124, 128128, 132132, 136136, 140140, 144144, 148148, 152152, 156156 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Michael De Vlieger, Table of n, a(n) for n = 1..10000 MATHEMATICA a248038[n_Integer] := Module[{m, t}, m := ToString[4 n ]; ToExpression[m <> m]]; a248038 /@ Range[50]; (* Michael De Vlieger, Nov 06 2014 *) PROG (Python) {print(str(4*n)*2, end=', ') for n in range(1, 50)} # Derek Orr, Oct 05 2014 CROSSREFS Cf. A020338 (n), A248038 (3n), A248422 (2n). Sequence in context: A335481 A345409 A246412 * A044182 A044563 A129289 Adjacent sequences: A248362 A248363 A248364 * A248366 A248367 A248368 KEYWORD nonn,base,easy AUTHOR Jacy Fang, Oct 05 2014 STATUS approved

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Last modified July 19 10:32 EDT 2024. Contains 374392 sequences. (Running on oeis4.)