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A353979
Number of one-sided polyarcs with n cells.
2
2, 11, 36, 169, 702, 3411, 16372, 81798, 412696, 2112362, 10907492, 56782983, 297599786, 1568750187
OFFSET
1,1
CROSSREFS
Cf. A057787.
Sequence in context: A176916 A015519 A096977 * A084098 A263547 A152819
KEYWORD
nonn,more
AUTHOR
Aaron N. Siegel, May 12 2022
STATUS
approved