a(n) is the number of resistance values R=x/y that can be obtained by a network of at most n one-ohm resistors such that a network of more than n one-ohm resistors is needed to obtain the resistance y/x.

A339547

a(n) is the number of resistance values R=x/y that can be obtained by a network of at most n one-ohm resistors such that a network of more than n one-ohm resistors is needed to obtain the resistance y/x.

Terms

    a(0) =15a(1) =172a(2) =1114a(3) =5378a(4) =22321a(5) =83995a(6) =293744a(7) =968965

External references