Number of connected regular graphs with n nodes and girth at least 7.

Terms

a(0) =1a(1) =1a(2) =1a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =1a(13) =1a(14) =1a(15) =1a(16) =1a(17) =1a(18) =1a(19) =1a(20) =1a(21) =1a(22) =1a(23) =1a(24) =2a(25) =1a(26) =4a(27) =1a(28) =22a(29) =1