Number of nX5 0..1 arrays with every element equal to 0, 1 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301961

Number of nX5 0..1 arrays with every element equal to 0, 1 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =14a(2) =41a(3) =111a(4) =311a(5) =874a(6) =2454a(7) =6906a(8) =19427a(9) =54659a(10) =153785a(11) =432694a(12) =1217420a(13) =3425350a(14) =9637573a(15) =27116351a(16) =76294719a(17) =214663346a(18) =603978142a(19) =1699356882a(20) =4781321499a(21) =13452757355a(22) =37850765441a(23) =106497159950a(24) =299641101508a(25) =843072151982

External references