Number of 2 X 2 matrices with all elements in {0,...,n} and prime permanent.

Terms

a(0) =0a(1) =1a(2) =27a(3) =85a(4) =139a(5) =307a(6) =399a(7) =765a(8) =1043a(9) =1517a(10) =1889a(11) =3021a(12) =3523a(13) =5299a(14) =6269a(15) =7671a(16) =9209a(17) =12729a(18) =14179a(19) =18995a(20) =21307a(21) =24991a(22) =28303a(23) =36261a(24) =39307a(25) =47541a(26) =52833a(27) =61173a(28) =67113a(29) =82125