a(n) = a(n-2) + a(n-3) + a(n-4) + a(n-5) + a(n-6) + a(n-7).

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =12a(8) =20a(9) =31a(10) =50a(11) =79a(12) =126a(13) =200a(14) =318a(15) =506a(16) =804a(17) =1279a(18) =2033a(19) =3233a(20) =5140a(21) =8173a(22) =12995a(23) =20662a(24) =32853a(25) =52236a(26) =83056a(27) =132059a(28) =209975a(29) =333861