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 A262583 #17 Oct 20 2023 09:51:58 %S A262583 0,24,936,42798,2130456,111557592,6041272680,335089258632, %T A262583 18922687509960,1083572842675608,62744027461625646, %U A262583 3666433604712457464,215879610645469496232,12792865816027823374872,762278349313657804740840,45638342462133835019322552 %N A262583 a(n) = A002704(n)-2. %H A262583 Alexander Rosa and Štefan Znám, <a href="/A002703/a002703.pdf">A combinatorial problem in the theory of congruences (Russian with English summary)</a>, Mat.-Fys. Casopis Sloven. Akad. Vied 15 1965 49-59. [Annotated scanned copy.] %H A262583 Alexander Rosa and Štefan Znám, <a href="/A002703/a002703_1.pdf">A remark on a combinatorial problem (Russian with English summary)</a>, Mat.-Fyz. Casopis Sloven. Akad. Vied 15 1965 313-316. [Annotated scanned copy] See Table 3. %Y A262583 Cf. A002704, A262570, A262584. %K A262583 nonn %O A262583 0,2 %A A262583 _N. J. A. Sloane_, Oct 20 2015 %E A262583 More terms from _R. J. Mathar_, Oct 21 2015 %E A262583 a(15) corrected by _Georg Fischer_, Jun 27 2020