Total length of all longest runs of 0's in multus bitstrings of length n.

Terms

a(0) =1a(1) =2a(2) =5a(3) =11a(4) =23a(5) =45a(6) =87a(7) =165a(8) =309a(9) =573a(10) =1056a(11) =1934a(12) =3527a(13) =6408a(14) =11605a(15) =20960a(16) =37771a(17) =67928a(18) =121949a(19) =218595a(20) =391302a(21) =699610a(22) =1249475a(23) =2229329a(24) =3974083a(25) =7078658a(26) =12599318a(27) =22410548a(28) =39837420a(29) =70775727