a(n) = 4 * A079137(n).

Terms

a(0) =0a(1) =0a(2) =32a(3) =0a(4) =328a(5) =2976a(6) =25512a(7) =124352a(8) =758752a(9) =4852448a(10) =26735408a(11) =145945312a(12) =805129880a(13) =4334341216a(14) =22824469832a(15) =119276925152a(16) =617722010896