99916domain: NAppears in sequencesNumber of self-avoiding closed walks from 0 of area n in strip Z X {-1,0,1}.at n=14A038578Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n; then a(n) is the trace of M(n)^(-7).at n=30A114359Number of chordless cycles in the n X n bishop graph.at n=8A370224