Number of 0..2 arrays of length n+3 with sum less than 4 in any length 4 subsequence (=less than 50% duty cycle).
A212723
Number of 0..2 arrays of length n+3 with sum less than 4 in any length 4 subsequence (=less than 50% duty cycle).
Terms
- a(0) =31a(1) =67a(2) =148a(3) =322a(4) =677a(5) =1439a(6) =3086a(7) =6625a(8) =14161a(9) =30244a(10) =64669a(11) =138374a(12) =295991a(13) =632942a(14) =1353515a(15) =2894804a(16) =6191317a(17) =13241220a(18) =28318162a(19) =60563023a(20) =129525173a(21) =277012820a(22) =592439104a(23) =1267031754a(24) =2709766972a(25) =5795308821a(26) =12394271806a(27) =26507289874
External references
- oeis: A212723