Number of distinct perforation patterns for deriving (v,b) = (n+2,n) punctured convolutional codes from (2,1).

A007223

Number of distinct perforation patterns for deriving (v,b) = (n+2,n) punctured convolutional codes from (2,1).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =24a(4) =85a(5) =286a(6) =1008a(7) =3536a(8) =12618a(9) =45220a(10) =163504a(11) =594320a(12) =2173197a(13) =7983990a(14) =29465440a(15) =109174560a(16) =405995326a(17) =1514797020a(18) =5669021488a(19) =21275014800a(20) =80047272578a(21) =301892460012

External references