# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a225586 Showing 1-1 of 1 %I A225586 #19 Sep 08 2022 08:46:05 %S A225586 4,12,41,156,624,2604,11160,48828,217013,976562,4438920,20345052, %T A225586 93900240,435965401,2034505208,9536743164,44878791360,211927625868, %U A225586 1003867701480,4768371582031,22706531343005,108372081409801,518301258916440,2483526865641276 %N A225586 Floor((5^n-1)/n). %H A225586 Vincenzo Librandi, Table of n, a(n) for n = 1..300 %t A225586 Table[Floor[(5^n - 1) / n], {n, 30}] (* or *) Table[Quotient[5^n - 1, n], {n, 30}] %o A225586 (Magma) [Floor((5^n-1)/n): n in [1..30]]; %Y A225586 Cf. A024049, A034474, A082482, A129795. %K A225586 nonn,easy %O A225586 1,1 %A A225586 _Vincenzo Librandi_, May 30 2013 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE