13404160domain: NAppears in sequencesSextuple factorial numbers: Product_{k=0..n-1} (6*k+4).at n=6A049308a(n) = ((6*n+10)(!^6))/10(!^6), related to A034724 (((6*n+4)(!^6))/4 sextic, or 6-factorials).at n=5A053103Sextuple factorials, 6-factorials, n!!!!!!, n!6.at n=34A085158a(n) = binomial(n+3,4)*4^4.at n=31A120054