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 A225971 #9 Aug 05 2015 17:06:52 %S A225971 1,37,777,12270,163175,1942929,21528521,228041846,2356747034, %T A225971 24163001708,249403489710,2627573750274,28640525859359, %U A225971 327328342356269,3972468538438185,51748509141715110,729042517121700175,11143605769040625033,184620160995781020415 %N A225971 Number of permutations of [n] having exactly 10 strong fixed blocks. %C A225971 See A186373 for the definition of strong fixed blocks. %H A225971 Alois P. Heinz, <a href="/A225971/b225971.txt">Table of n, a(n) for n = 28..470</a> %F A225971 a(n) ~ 9 * n! / n^26. - _Vaclav Kotesovec_, Aug 29 2014 %Y A225971 Column k=10 of A186373. %K A225971 nonn %O A225971 28,2 %A A225971 _Alois P. Heinz_, May 22 2013