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.

A226002 Number of pairs of orthogonal (-4,7) vectors of length 11*n.

This page as a plain text file.
%I A226002 #8 Sep 06 2013 02:02:31
%S A226002 23760,241040067840,927160196029562880,2606734186332708640980992,
%T A226002 10726454782976061347559450869760,
%U A226002 39254958066409241851311669665794621440,146612881747544901468330072567145716462387200
%N A226002 Number of pairs of orthogonal (-4,7) vectors of length 11*n.
%C A226002 Row 16 of A225987.
%H A226002 R. H. Hardin, <a href="/A226002/b226002.txt">Table of n, a(n) for n = 1..40</a>
%e A226002 Some solutions for n=1
%e A226002 .-4..7...-4..7....7..7...-4..7....7..7....7..7....7..7...-4..7....7..7....7..7
%e A226002 ..7.-4...-4..7...-4..7....7.-4...-4..7...-4..7...-4..7...-4..7...-4..7...-4..7
%e A226002 .-4..7...-4..7....7.-4....7.-4....7..7....7.-4....7..7....7..7...-4..7....7..7
%e A226002 ..7..7...-4..7....7..7....7..7...-4..7...-4..7....7.-4....7..7....7..7....7.-4
%e A226002 ..7..7....7..7....7..7....7.-4...-4..7....7..7....7..7....7..7....7..7...-4..7
%e A226002 .-4..7...-4..7...-4..7....7..7....7..7....7..7...-4..7....7..7....7.-4...-4..7
%e A226002 ..7.-4....7..7...-4..7....7..7....7.-4....7..7....7.-4...-4..7...-4..7...-4..7
%e A226002 ..7..7...-4..7....7..7....7.-4....7.-4...-4..7....7..7....7.-4...-4..7...-4..7
%e A226002 ..7.-4....7..7....7.-4...-4..7....7..7...-4..7....7.-4...-4..7....7.-4....7..7
%e A226002 ..7..7....7.-4...-4..7....7..7...-4..7....7.-4....7.-4....7.-4...-4..7...-4..7
%e A226002 ..7.-4....7..7...-4..7....7.-4...-4..7...-4..7....7.-4....7.-4....7..7....7..7
%K A226002 nonn
%O A226002 1,1
%A A226002 _R. H. Hardin_, May 22 2013