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A011959
Number of SiC polytypes that repeat after 2n layers.
0
0, 0, 1, 1, 0, 1, 1, 1, 1, 3, 3, 4, 7, 11, 15, 24, 36, 55, 81, 129, 195, 301, 465, 728, 1116, 1745, 2717, 4239, 6603, 10357, 16189, 25383, 39807, 62557, 98245, 154608, 243346, 383436, 604346, 953582, 1505106, 2377442, 3757050, 5941269
OFFSET
1,10
REFERENCES
T. J. McLarnan, The numbers of polytypes ..., Zeits. Krist. 155, 269-291 (1981).
CROSSREFS
Sequence in context: A298914 A205116 A373457 * A246023 A049927 A329216
KEYWORD
nonn,easy
AUTHOR
STATUS
approved