13084381

Properties

Appears in sequences

• a(n) is the cardinality of the "Cross Set" which is the subset of distinct resistances that can be produced by a circuit of n unit resistors using only series or parallel combinations which cannot be decomposed as a single unit resistor in either series or parallel with a circuit of n-1 unit resistors.at n=20A176497
• G.f.: Sum_{n>=0} x^n * ( (1+x)^n + (1-x)^n )^n / 2^n.at n=15A301308
• Prime numbersat n=854348