A356204 a(n) is the second component y of the distance vector (x,y) in an oblique 120-degree coordinate system, 0 <= y <= x, between two nodes of an infinite triangular lattice of one-ohm resistors, such that the resistance R between the two nodes is as close as possible to n ohms, i.e., abs(R - n) is minimized. x is A356203(n).
0, 18, 2536, 1136101, 119227930, 33636581266, 1774960492720, 685318499093455
Offset: 0
Examples
See table in A356203.