A338605 - OEIS

A338605

Resistance values R < 1 ohm, multiplied by their common denominator 840 (= A338600(5)), that can be obtained from a network of exactly 5 one-ohm resistors, but not from any network with fewer than 5 one-ohm resistors.

%I #13 Nov 08 2020 04:53:46

%S 168,240,315,360,480,525,600,672,700,720

%N Resistance values R < 1 ohm, multiplied by their common denominator 840 (= A338600(5)), that can be obtained from a network of exactly 5 one-ohm resistors, but not from any network with fewer than 5 one-ohm resistors.

%e The list of resistance values < 1 ohm is A338580(n)/A338595(n). a(n) = 840 * [1/5, 2/7, 3/8, 3/7, 4/7, 5/8, 5/7, 4/5, 5/6, 6/7].

%Y Cf. A051389, A338580, A338595, A338600.

%K nonn,fini,full

%O 1,1

%A _Hugo Pfoertner_, Nov 03 2020