Majority value maps: number of 2Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 2Xn array.
A220387
Majority value maps: number of 2Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 2Xn array.
Terms
- a(0) =1a(1) =7a(2) =25a(3) =79a(4) =278a(5) =966a(6) =3362a(7) =11642a(8) =40375a(9) =140102a(10) =486191a(11) =1686966a(12) =5853300a(13) =20309556a(14) =70470311a(15) =244518242a(16) =848429087a(17) =2943877082a(18) =10214660764a(19) =35442822154a(20) =122979474647a(21) =426714063696
External references
- oeis: A220387