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A356204
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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).
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2
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..7.
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EXAMPLE
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See table in A356203.
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CROSSREFS
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Cf. A355585, A355586, A355587, A355588, A355589, A355954.
Cf. A356201, A356202 (similar for square lattice).
Sequence in context: A282830 A174637 A267065 * A243215 A162449 A318297
Adjacent sequences: A356201 A356202 A356203 * A356205 A356206 A356207
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KEYWORD
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nonn,hard,more
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AUTHOR
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Hugo Pfoertner, Aug 13 2022
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STATUS
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approved
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