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 A345205 #17 Jul 12 2021 03:22:05 %S A345205 8,26,34,42,44,52,54,56,56,64,66,68,68,76,78,80,80,82,82,90,92,94,94, %T A345205 96,96,98,98,98 %N A345205 Minimum number of unit cubes needed to fully enclose n unit cubes in 3D space. %C A345205 Cubes are assumed to be aligned in a 3D grid. Cubes with an exposed edge or corner are not considered enclosed. %e A345205 For a(1) the solution is the number of neighbors in Moore's neighborhood in 3 dimensions (3^3-1 = 26). %e A345205 For a(2) the solution is the neighbors in Moore's neighborhood in 3 dimensions plus the number of neighbors in 2 dimensions (3^2-1 = 8). %Y A345205 Cf. A345206, A235382 (2D equivalent), A007395 (1D equivalent), A024023. %K A345205 nonn,more %O A345205 0,1 %A A345205 _Abraham Maxfield_, Jun 10 2021