a(n) = number of non-orientable genus 1 maps with n edges.
A348802
a(n) = number of non-orientable genus 1 maps with n edges.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =19a(4) =106a(5) =709a(6) =5356a(7) =44558a(8) =397146a(9) =3716039a(10) =35967272a(11) =356784008a(12) =3605014966a(13) =36955965852a(14) =383320824698
External references
- oeis: A348802