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 A114470 #12 Feb 16 2025 08:32:59 %S A114470 1,7,76,764,7654,76553,765549,7655510 %N A114470 Number of decimal digits in Delannoy[10^n]. %H A114470 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/DelannoyNumber.html">Delannoy Number</a> %F A114470 Limit[Log[10, a(n)]/n, n->Infinity] = Log[10, 3+2*sqrt(2) ] = 0.765551370675726156638799048... since the real root possessing the smallest absolute value of expression (1-6*x+x^2) (found in the g.f.) equals 1/(3+2*sqrt(2)). (See A104178). - _Paul D. Hanna_, Dec 01 2005 %Y A114470 Cf. A001850, A114472. %K A114470 nonn,base %O A114470 0,2 %A A114470 _Eric W. Weisstein_, Nov 30 2005