Number of Golomb rulers of length n.

Terms

a(0) =1a(1) =1a(2) =3a(3) =3a(4) =5a(5) =7a(6) =13a(7) =15a(8) =27a(9) =25a(10) =45a(11) =59a(12) =89a(13) =103a(14) =163a(15) =187a(16) =281a(17) =313a(18) =469a(19) =533a(20) =835a(21) =873a(22) =1319a(23) =1551a(24) =2093a(25) =2347a(26) =3477a(27) =3881a(28) =5363a(29) =5871