A248365 4n concatenated with itself.
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
Offset: 1
Links
- Michael De Vlieger, Table of n, a(n) for n = 1..10000
Programs
-
Mathematica
a248038[n_Integer] := Module[{m, t}, m := ToString[4 n ]; ToExpression[m <> m]]; a248038 /@ Range[50]; (* Michael De Vlieger, Nov 06 2014 *) -
Python
{print(str(4*n)*2,end=', ') for n in range(1,50)} # Derek Orr, Oct 05 2014