OFFSET
1,2
COMMENTS
For n = 4, there would be an additional 4 possible values if circuits were allowed that combine complex subcircuits in series or parallel, rather than requiring that one of them consists of a single resistor. See illustration in links. - Kival Ngaokrajang, Aug 22 2013 (rephrased by Dave R.M. Langers, Nov 13 2013)
LINKS
Sean A. Irvine, Java program (github)
Kival Ngaokrajang, Illustration for n = 4
Eric Weisstein's World of Mathematics, Resistor Network.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
EXTENSIONS
Offset corrected and a(8)-a(9) from Sean A. Irvine, Aug 23 2021
STATUS
approved