Noninvertible 3 X 3 matrices over Z_n.

Terms

a(0) =0a(1) =344a(2) =8451a(3) =176128a(4) =465125a(5) =8190720a(6) =6569479a(7) =90177536a(8) =166341033a(9) =750016000a(10) =233671691a(11) =4193648640a(12) =878081581a(13) =14985313280a(14) =21730143375a(15) =46170898432a(16) =7384597649a(17) =161217941760a(18) =17874835219a(19) =384008192000a(20) =414816720885