A263157 Decimal expansion of the Kakeya constant.

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

Offset

2,2

Comments

The Kakeya constant gives the greatest lower bound of areas of Kakeya sets.

Named after the Japanese mathematician Sōichi Kakeya (1886-1947). - Amiram Eldar, Jun 26 2021

Links

Table of n, a(n) for n=2..88.

F. Cunningham Jr. and I. J. Schoenberg, On the Kakeya constant, Canad. J. Math., Vol. 17 (1965), pp. 946-956.

Simon Plouffe, The Kakeya constant.

Wikipedia, Kakeya set.

Example

15.3377230231024356717285601672257899461012951894275...

Crossrefs

Sequence in context: A021656 A337571 A244683 * A084538 A263492 A335765

Adjacent sequences: A263154 A263155 A263156 * A263158 A263159 A263160

Keyword

nonn,cons

Author

Felix Fröhlich, Jan 17 2016

Status

approved