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 A290190 Minimum sum of mutual Manhattan distances of n distinct grid points in a cubic lattice. 1
 1, 4, 8, 16, 25, 36, 48, 68, 89, 112, 136, 168 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 COMMENTS Sum of mutual L1-distances of locations in a 3-dimensional n-town of optimum shape. LINKS Table of n, a(n) for n=2..13. EXAMPLE a(2)=1: Grid points (1 2 2),(1 1 2) a(3)=4: (1 1 1),(1 2 1),(2 1 1) a(4)=8: (1 1 1),(2 1 1),(1 2 1),(2 2 1) a(5)=16: (1 2 2),(2 2 1),(2 2 2),(1 1 1),(1 2 1) a(6)=25: (2 1 2),(1 1 1),(2 2 1),(2 1 1),(1 2 1),(2 2 2) a(10)=89: (2 2 2),(1 3 1),(1 1 1),(1 2 2),(2 3 2),(2 1 1),(1 3 2),(1 2 1),(2 2 1),(2 3 1) CROSSREFS Cf. A193452. Sequence in context: A246067 A161226 A022560 * A193452 A003451 A277029 Adjacent sequences: A290187 A290188 A290189 * A290191 A290192 A290193 KEYWORD nonn,more AUTHOR Hugo Pfoertner, Jul 23 2017 STATUS approved

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Last modified June 6 05:06 EDT 2023. Contains 363139 sequences. (Running on oeis4.)