Number of (n+1)X(2+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits.
A261937
Number of (n+1)X(2+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits.
Terms
- a(0) =0a(1) =2a(2) =5a(3) =12a(4) =31a(5) =57a(6) =112a(7) =296a(8) =833a(9) =1889a(10) =5015a(11) =11625a(12) =30782a(13) =80154a(14) =202448a(15) =526705a(16) =1410549a(17) =3698903
External references
- oeis: A261937