Number of total dominating sets in the n-Moebius ladder.

Terms

a(0) =1a(1) =11a(2) =49a(3) =131a(4) =441a(5) =1499a(6) =5041a(7) =17155a(8) =58081a(9) =196331a(10) =664225a(11) =2246915a(12) =7601049a(13) =25714875a(14) =86992929a(15) =294294531a(16) =995591809a(17) =3368061131a(18) =11394068049a(19) =38545859971a(20) =130399709881a(21) =441139059867