Number of 5-unbalanced strings of length n (=2^n-A027560(n)).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =2a(7) =6a(8) =24a(9) =62a(10) =178a(11) =426a(12) =1070a(13) =2444a(14) =5720a(15) =12662a(16) =28392a(17) =61464a(18) =133980a(19) =285304a(20) =609750a(21) =1282278a(22) =2701396a(23) =5626046a(24) =11725614a(25) =24234418a(26) =50093914a(27) =102905764a(28) =211350724a(29) =432051438