A393499 Decimal expansion of 512/(45*Pi^(5/2)), which is the average dimensionless pairwise Manhattan distance between all points in a city of circular shape.

6, 5, 0, 4, 0, 3, 3, 4, 3, 9, 7, 1, 3, 9, 9, 4, 9, 5, 1, 9, 2, 8, 3, 8, 6, 5, 0, 4, 6, 2, 3, 4, 7, 5, 7, 3, 4, 2, 3, 5, 5, 0, 0, 0, 5, 0, 8, 8, 4, 5, 4, 2, 1, 3, 0, 2, 8, 5, 1, 7, 0, 3, 7, 8, 7, 8, 9, 9, 6, 5, 2, 4, 2, 3, 7, 0, 9, 8, 8, 7, 0, 2, 7, 3, 1, 9, 3, 0

Offset

0,1

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

Carl M. Bender, Michael A. Bender, Erik D. Demaine and Sándor P. Fekete, What is the optimal shape of a city?, Journal of Physics A: Mathematical and General, Volume 37, Number 1, 2014. Alternative link. (3.3, page 150)

Example

0.65040334397139949519283865046234757342355...

Mathematica

First[RealDigits[512/(45*Pi^(5/2)), 10, 100]] (* Paolo Xausa, Feb 18 2026 *)

Prog

(PARI) 512/(45*Pi^(5/2))

Crossrefs

Cf. A193452, A393500, A393501.

Sequence in context: A393500 A393501 A396440 * A010773 A099288 A256717

Adjacent sequences: A393496 A393497 A393498 * A393500 A393501 A393502

Keyword

nonn,cons

Author

Hugo Pfoertner, Feb 17 2026

Status

approved