a(n) is the number of distinct resistances that can be produced using at most n unit resistors in a planar network.

A340921

a(n) is the number of distinct resistances that can be produced using at most n unit resistors in a planar network.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =36a(6) =80a(7) =194a(8) =506a(9) =1400a(10) =4024a(11) =11870a(12) =35200a(13) =104836a(14) =311686a(15) =929088a(16) =2776618a(17) =8321128a(18) =24967712a(19) =74985708

External references