Number of multisets of exactly four nonempty binary words with a total of n letters such that no word has a majority of 0's.

A316405

Number of multisets of exactly four nonempty binary words with a total of n letters such that no word has a majority of 0's.

Terms

    a(0) =1a(1) =3a(2) =10a(3) =33a(4) =98a(5) =270a(6) =738a(7) =1935a(8) =5004a(9) =12580a(10) =31354a(11) =76444a(12) =185305a(13) =441363a(14) =1046837a(15) =2447913a(16) =5705753a(17) =13143961a(18) =30202325a(19) =68719396a(20) =156034994a(21) =351348607a(22) =789783351a(23) =1762658134a(24) =3928209272a(25) =8700183502a(26) =19244947618a(27) =42340195770a(28) =93049476310a(29) =203518456343

External references