Number of binary words of length 2n with an even number of 1's which are not shuffle squares.
A360412
Number of binary words of length 2n with an even number of 1's which are not shuffle squares.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =10a(4) =46a(5) =192a(6) =780a(7) =3090a(8) =12136a(9) =47100a(10) =181820a(11) =697856a(12) =2667642a(13) =10157814a(14) =38563342a(15) =146002012a(16) =551483230a(17) =2078722874a(18) =7821121318a(19) =29378487188
External references
- oeis: A360412