|
|
|
|
| A327693
|
|
Triangle read by rows: T(n,k) is the number of n-bead necklace structures which are not self-equivalent under a nonzero rotation using exactly k different colored beads.
(history;
published version)
|
|
|
|
|
#16 by N. J. A. Sloane at Wed Oct 30 20:01:49 EDT 2019
|
|
|
|
|
|
|
|
#15 by Andrew Howroyd at Wed Oct 30 16:05:54 EDT 2019
|
|
|
|
|
|
|
|
#14 by Andrew Howroyd at Wed Oct 30 15:57:59 EDT 2019
|
|
| NAME
|
Triangle read by rows: T(n,k) is the number of n-bead necklace structures using exactly k different colored beads thatwhich are not self-equivalent under a nonzero rotation using exactly k different colored beads.
|
|
| CROSSREFS
|
Cf. A324802 (if must not be self-equivalent tounder reversal + and rotations).
|
|
|
|
|
|
|
#13 by Andrew Howroyd at Wed Oct 30 15:55:05 EDT 2019
|
|
| CROSSREFS
|
Cf. A324802 (if must not be self-equivalent to reversal + rotations).
|
|
|
|
|
|
|
#12 by Andrew Howroyd at Tue Oct 29 13:02:25 EDT 2019
|
|
|
|
|
|
|
|
#11 by Alois P. Heinz at Thu Oct 03 20:41:28 EDT 2019
|
|
|
|
|
|
|
|
#10 by Andrew Howroyd at Thu Oct 03 19:48:27 EDT 2019
|
|
|
|
|
|
|
|
#9 by Andrew Howroyd at Thu Oct 03 19:44:44 EDT 2019
|
|
| LINKS
|
Andrew Howroyd, <a href="/A327693/b327693.txt">Table of n, a(n) for n = 1..1275</a>
|
|
| STATUS
|
approved
editing
|
|
|
|
|
|
|
#8 by Susanna Cuyler at Sun Sep 22 20:44:14 EDT 2019
|
|
|
|
|
|
|
|
#7 by Andrew Howroyd at Sun Sep 22 18:17:28 EDT 2019
|
|
|
|
|
|
|
