Number of nX5 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A298927
Number of nX5 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =11a(2) =3a(3) =23a(4) =94a(5) =255a(6) =666a(7) =2720a(8) =8571a(9) =30093a(10) =106192a(11) =369318a(12) =1291934a(13) =4552705a(14) =15952349a(15) =56078262a(16) =197277132a(17) =693611434a(18) =2438933680a(19) =8579643205a(20) =30173988847a(21) =106130105150a(22) =373307026724
External references
- oeis: A298927