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A054722 Triangle of coefficients of polynomials arising in enumeration of periodic sequences. 1
1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 2, 5, 3, 1, 1, 3, 13, 18, 7, 1, 1, 3, 20, 50, 43, 9, 1, 1, 4, 36, 136, 221, 126, 19, 1, 1, 4, 52, 296, 773, 866, 339, 29, 1, 1, 5, 78, 596, 2303, 4281, 3437, 946, 55, 1, 1, 5, 105, 1080, 5817, 16317, 22430, 13250, 2591, 93, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,8
REFERENCES
E. N. Gilbert and J. Riordan, Symmetry types of periodic sequences, Illinois J. Math., 5 (1961), 657-665.
LINKS
Sean A. Irvine, Java program (github)
EXAMPLE
1; 1,1; 1,1,1; 1,2,3,1; ...
CROSSREFS
Sequence in context: A299481 A304738 A046226 * A295260 A256187 A308297
KEYWORD
nonn,tabl
AUTHOR
N. J. A. Sloane, Apr 20 2000
EXTENSIONS
More terms and offset corrected by Sean A. Irvine, Feb 18 2022
STATUS
approved

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Last modified March 29 04:22 EDT 2024. Contains 371264 sequences. (Running on oeis4.)