7155720domain: NAppears in sequencesn-th derivative of sec(x)^sinh(x) at x=0.at n=12A215678Number of n-length words w over a 5-ary alphabet {a1,a2,...,a5} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a5) >= 1, where #(w,x) counts the letters x in word w.at n=7A226884