A364897 Decimal expansion of the 4-volume of the unit regular 600-cell.

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

Offset

2,1

Comments

Decimal expansion of (50+25*sqrt(5))/4.

Links

Table of n, a(n) for n=2..100.

Wikipedia, 600-cell

Polytope Wiki, Hexacosichoron

Example

Equals 26.47542485937368560255...

Mathematica

First[RealDigits[(50 + 25*Sqrt[5])/4, 10, 100]] (* Paolo Xausa, Jun 12 2024 *)

Prog

(PARI) (50+25*sqrt(5))/4

Crossrefs

Decimal expansion of 4-volumes: A364895 (5-cell), A000007 = 1 (8-cell or tesseract), A020793 = 1/6 (16-cell), A000038 = 2 (24-cell), A364896 (120-cell), this sequence (600-cell).

Cf. A102208 (decimal expansion of the volume of the unit regular icosahedron).

Sequence in context: A330776 A327458 A202347 * A266120 A296348 A088438

Adjacent sequences: A364894 A364895 A364896 * A364898 A364899 A364900

Keyword

nonn,cons

Author

Jianing Song, Aug 12 2023

Status

approved