a(n) is the number of core triads with n nodes up to isomorphism and transposition.

A342795

a(n) is the number of core triads with n nodes up to isomorphism and transposition.

Terms

    a(0) =1a(1) =3a(2) =9a(3) =24a(4) =62a(5) =159a(6) =381a(7) =927a(8) =2150a(9) =5051a(10) =11483a(11) =26332a(12) =58986a(13) =132796a(14) =294046a(15) =652772a(16) =1431813a(17) =3143879a(18) =6841673

External references