Number of 5-cycles in the n X n king graph.

Terms

a(0) =0a(1) =0a(2) =52a(3) =176a(4) =372a(5) =640a(6) =980a(7) =1392a(8) =1876a(9) =2432a(10) =3060a(11) =3760a(12) =4532a(13) =5376a(14) =6292a(15) =7280a(16) =8340a(17) =9472a(18) =10676a(19) =11952a(20) =13300a(21) =14720a(22) =16212a(23) =17776a(24) =19412a(25) =21120a(26) =22900a(27) =24752a(28) =26676a(29) =28672