The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A239355 Number of unit hypercubes, aligned with a four-dimensional Cartesian mesh, partially enclosed along the edge of the first 2^4-ant of a hypersphere centered at the origin, ordered by increasing radius. 1
 0, 1, 1, 5, 5, 11, 11, 15, 14, 19, 19, 31, 31, 43, 39, 43, 43, 49, 49, 65, 59, 77, 77, 89, 85, 93, 89, 105, 105, 129, 117, 129, 128, 133, 133, 157, 145, 175, 171, 187, 181, 199, 195, 223, 211, 235, 223, 235, 235, 247, 235, 263, 257, 299, 287, 315, 303, 315 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Rajan Murthy, Table of n, a(n) for n = 1..201 EXAMPLE At radius 0, there are no partially filled cubes. At radius > 0 but < 1, there is 1 partially filled square along the edge of the sphere. At radius = 1, there is 1 partially filled cube along the edge of the sphere. At radius > 1 but < sqrt(2), there are 5 partially filled cubes. CROSSREFS Cf. A001477 (corresponds to the square radius of alternate entries). Cf. A237708 (3-dimensional analog), A234300 (2-dimensional analog). Sequence in context: A058610 A143427 A287996 * A218121 A168300 A356048 Adjacent sequences: A239352 A239353 A239354 * A239356 A239357 A239358 KEYWORD nonn AUTHOR Rajan Murthy, Mar 16 2014 EXTENSIONS Terms a(22) and beyond from b-file by Andrew Howroyd, Feb 05 2018 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 8 23:09 EST 2023. Contains 367680 sequences. (Running on oeis4.)