|
Search: id:A103442
|
|
|
| A103442 |
|
Row sums of A103441. Number of two-colored bracelets of n beads with different sets of distances among the white beads. |
|
+0
2
|
|
| 1, 2, 4, 6, 11, 16, 27, 44, 73, 124, 199, 372, 613, 1142, 1874
(list; graph; listen)
|
|
|
OFFSET
|
2,2
|
|
|
MATHEMATICA
|
(* see A103441 *) Table[Length[Union[(dist[f[ #1], n]&)/@Flatten[Table[ListNecklaces[n, Join[1+0*Range[i], 0*Range[n-i]], Dihedral], {i, 1, n-1}], 1]]], {n, 2, 16}]
|
|
CROSSREFS
|
Cf. A103441, A056342.
Sequence in context: A115269 A103692 A114921 this_sequence A056342 A094719 A018144
Adjacent sequences: A103439 A103440 A103441 this_sequence A103443 A103444 A103445
|
|
KEYWORD
|
hard,nonn
|
|
AUTHOR
|
Wouter Meeussen (wouter.meeussen(AT)pandora.be), Feb 06 2005
|
|
|
Search completed in 0.002 seconds
|
