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A052313 Triangle read by rows: matrix square of A047996. 2
1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 6, 5, 5, 2, 1, 8, 7, 8, 5, 2, 1, 14, 13, 18, 13, 7, 2, 1, 20, 19, 30, 25, 16, 7, 2, 1, 36, 35, 64, 59, 44, 21, 9, 2, 1, 60, 59, 120, 129, 102, 57, 28, 9, 2, 1, 108, 107, 244, 291, 260, 159, 86, 33, 11, 2, 1, 188, 187, 470, 629, 620, 417, 246, 107 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..73.

Index entries for sequences related to necklaces

EXAMPLE

1; 2,1; 3,2,1; 4,3,2,1; 6,5,5,2,1; ...

CROSSREFS

Sequence in context: A249822 A200082 A052310 * A271355 A211230 A049085

Adjacent sequences:  A052310 A052311 A052312 * A052314 A052315 A052316

KEYWORD

nonn,tabl

AUTHOR

Christian G. Bower, Dec 15 1999

STATUS

approved

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Last modified May 28 10:48 EDT 2017. Contains 287240 sequences.