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 A099537 #5 Jul 11 2023 08:17:37 %S A099537 2,2,4,4,9,15,24,24,27,28,33,42,47,56,60,62,70,75,78,87,96,103,106, %T A099537 114,115,121,122,127,128,129,133,137,146,155,164,164,171,177,181,190, %U A099537 198,204,206,215,217,220,224,224,228,237,245,253,261,262,269,278,280,282 %N A099537 Sum of the first n decimal places of zeta(3) (Apery's constant). This does not include the initial "1." of zeta(3). %F A099537 a(n)=A099536(n+1)-1 %e A099537 The decimal places of zeta(3) are 2020569031... so the sums are 2, 2+0, 2+0+2, %e A099537 2+0+2+0, 2+0+2+0+5, ... which gives 2, 2, 4, 4, 9,... %t A099537 Accumulate[Rest[RealDigits[Zeta[3],10,60][[1]]]] (* _Harvey P. Dale_, May 23 2021 *) %Y A099537 Cf. A099535 for version when including all digits of zeta(3). %Y A099537 Apéry's number or Apéry's constant zeta(3) is A002117. - _N. J. A. Sloane_, Jul 11 2023 %K A099537 base,easy,nonn %O A099537 1,1 %A A099537 Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 22 2004