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 A132826 #31 Aug 25 2022 08:31:11 %S A132826 1,6,2,9,4,0,4,3,3,2,4,5,9,3,3,7,3,7,3,4,1,7,9,3,4,6,5,2,9,8,3,5,4,2, %T A132826 1,7,2,8,2,1,8,8,8,4,2,6,7,1,4,8,6,6,2,3,0,3,6,2,3,6,1,1,9,3,6,9,4,0, %U A132826 9,2,2,0,2,9,4,5,2,5,0,4,6,8,6,6,7,9,8,5,4,4,7,0,8,4,2,2,3,1,7,8,9,2,2,8,1 %N A132826 Decimal expansion of the integer Googol!. %C A132826 The number in question has 9956570551809674817234887108108339491770560299419 \ 63334338855462168341353507911292252707750506615682568 digits and ends in exactly 10^101/8 - 18 zeros. - _Robert G. Wilson v_, Jan 09 2013 %C A132826 The last nonzero term of this sequence is 6. - _Washington Bomfim_, Dec 24 2010 %D A132826 Ronald L. Graham, Donald E. Knuth and Oren Patashnik, Concrete Math.; section 4, exercises 40, and 54. %F A132826 10^100! = 1*2*3*4*...*(10^100-1)*10^100. %t A132826 f[n_] := 10^FractionalPart[N[(n*Log[n] - n + (1/2)*Log[(2*n + 1/3)*Pi])/Log[10], 203]]; RealDigits[ f[10^100], 10, 101][[1]] (* _Robert G. Wilson v_, Jan 09 2013 *) %Y A132826 Cf. A034886, A173670. %K A132826 cons,nonn,fini %O A132826 1,2 %A A132826 _Martin Raab_, Nov 18 2007, Dec 11 2007