Number of n X 3 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.

A275499

Number of n X 3 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.

Terms

    a(0) =5a(1) =54a(2) =80a(3) =136a(4) =232a(5) =516a(6) =1168a(7) =2660a(8) =6024a(9) =13716a(10) =31168a(11) =70868a(12) =161176a(13) =366452a(14) =833360a(15) =1894996a(16) =4309160a(17) =9799012a(18) =22282576a(19) =50670228a(20) =115222840a(21) =262014052a(22) =595814224a(23) =1354867540a(24) =3080938312a(25) =7005983220a(26) =15931445856a(27) =36227745252

External references