Number of 0..3 arrays of length n+3 with sum less than 6 in any length 4 subsequence (=less than 50% duty cycle).
A213458
Number of 0..3 arrays of length n+3 with sum less than 6 in any length 4 subsequence (=less than 50% duty cycle).
Terms
- a(0) =106a(1) =310a(2) =927a(3) =2735a(4) =7803a(5) =22506a(6) =65425a(7) =190318a(8) =551598a(9) =1597812a(10) =4632940a(11) =13439852a(12) =38977905a(13) =113018097a(14) =327714656a(15) =950345164a(16) =2755932228a(17) =7991769082a(18) =23174685375a(19) =67202984107a(20) =194879111652a(21) =565120621828
External references
- oeis: A213458