Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A301322
Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =1063a(2) =1844a(3) =3996a(4) =8035a(5) =15802a(6) =31172a(7) =62375a(8) =126931a(9) =262036a(10) =546825a(11) =1149471a(12) =2427928a(13) =5143628a(14) =10917376a(15) =23198890a(16) =49332845a(17) =104956579a(18) =223369135a(19) =475481242a(20) =1012314623a(21) =2155517305a(22) =4590185451a(23) =9775585602a(24) =20820114408
External references
- oeis: A301322