cp's OEIS Frontend

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.

A214381 Number of nXnXn triangular 0..5 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.

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%I A214381 #5 Jul 22 2025 23:15:55
%S A214381 6,100,3976,350232,65905056,26006503128,21313909250888,
%T A214381 36101453103008816,126080220122483366296
%N A214381 Number of nXnXn triangular 0..5 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.
%C A214381 Column 5 of A214384
%e A214381 Some solutions for n=3
%e A214381 ....4......2......4......3......0......2......2......3......4......4......2
%e A214381 ...4.2....1.4....0.4....3.0....2.0....3.1....3.2....1.4....0.4....3.4....0.3
%e A214381 ..2.4.1..2.0.5..0.2.4..1.4.0..2.3.0..5.1.3..3.5.1..0.4.3..1.0.5..2.5.2..1.0.5
%K A214381 nonn
%O A214381 1,1
%A A214381 _R. H. Hardin_ Jul 14 2012