Third column (n=3) of triangle A119937.

Terms

a(0) =7a(1) =256a(2) =300a(3) =16000a(4) =67375a(5) =627200a(6) =642096a(7) =79027200a(8) =80041500a(9) =13660416000a(10) =13766266800a(11) =13851661824a(12) =55686205575