Record subsequence of b(3k+1), b()=A048142().

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =2a(7) =3a(8) =6a(9) =9a(10) =16a(11) =23a(12) =36a(13) =52a(14) =78a(15) =111a(16) =163a(17) =227a(18) =322a(19) =444a(20) =618a(21) =841a(22) =1151a(23) =1550a(24) =2094a(25) =2793a(26) =3730a(27) =4931a(28) =6522a(29) =8555