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 A090976 #18 Jun 01 2020 11:05:04 %S A090976 0,0,1,0,0,4,2,4,1,0,1,4,9,2,10,4,15,10,5,0,16,12,8,4,0,22,19,16,13, %T A090976 10,7,4,1,32,30,28,26,24,22,20,18,16,14,12,10,8,6,4,2,0,49,48,47,46, %U A090976 45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21 %N A090976 a(n) = 100 reduced mod n. %F A090976 a(n) = 100 - n*[100/n] where [x] = floor. %F A090976 a(n) = 100 for n > 100. %e A090976 a(17)= 15 because [100/17] = 5, remainder is 15 (17*5 = 85, 100-85 = 15). %t A090976 Mod[100,Range[80]] (* _Harvey P. Dale_, Jun 01 2020 *) %o A090976 (PARI) a(n) = 100 % n \\ _Michel Marcus_, Jun 29 2013 %K A090976 easy,nonn %O A090976 1,6 %A A090976 Andy Edwards (AndynGen(AT)aol.com), Feb 28 2004 %E A090976 More terms from _David Wasserman_, Feb 23 2006