This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A209300 #12 Mar 31 2025 12:04:50 %S A209300 0,1,208,302113,12135038976,53366922838224001, %T A209300 60766008114261830429310976,6922077673356416725162445396958387201, %U A209300 84806450837637486354121195943915016945664000000000,120401303109437699738873226784807398144004603135278868200044928001 %N A209300 a(n) = (n+1)^((n+1)!) mod (n!)^n. %o A209300 (Maxima) makelist(mod((n+1)^((n+1)!),(n!)^n),n,1,10); %Y A209300 CF. A067039, A187751. %K A209300 nonn,easy %O A209300 1,3 %A A209300 _Martin Ettl_, Jan 18 2013 %E A209300 Offset changed to 1 by _Georg Fischer_, Mar 31 2025