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 A155499 #16 Feb 20 2016 06:18:56 %S A155499 1,9,83,1027,15629,279941,5764807,134217735,3486784409,100000000009, %T A155499 3138428376731,106993205379083,3937376385699301,155568095557812237, %U A155499 6568408355712890639,295147905179352825871 %N A155499 a(n) = n + (n+1)^(n+2). %C A155499 All the terms are evidently odd. If n is even, a(n) is (n+1) mod 8; if n is odd, a(n) is n mod 8. %C A155499 Thus the sequence of remainders by dividing a(n) by 8 is given by 1, 1, 3, 3, 5, 5, 7, 7, 1, 1... %H A155499 Vincenzo Librandi, <a href="/A155499/b155499.txt">Table of n, a(n) for n = 0..200</a> %e A155499 If n=2, a(2)=2+3^4=83. %t A155499 Table[n +(n+1)^(n+2),{n,20}] (* or *) #[[1]]+#[[2]]^#[[3]]&/@ Partition[ Range[20],3,1] (* _Harvey P. Dale_, Mar 14 2012 *) %o A155499 (PARI) a(n) = n+(n+1)^(n+2); \\ _Michel Marcus_, Feb 20 2016 %K A155499 nonn %O A155499 0,2 %A A155499 Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 23 2009 %E A155499 Added the first term 1 by _Vincenzo Librandi_, Mar 15 2012