Number of n X n symmetric binary matrices with no row sum greater than 3.
A139679
Number of n X n symmetric binary matrices with no row sum greater than 3.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =64a(4) =809a(5) =13846a(6) =301262a(7) =8035168a(8) =255780779a(9) =9519891214a(10) =407613033836
External references
- oeis: A139679