A011959 Number of SiC polytypes that repeat after 2n layers.

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).

Links

Table of n, a(n) for n=1..44.

Crossrefs

Sequence in context: A087329 A298914 A205116 * A246023 A049927 A329216

Adjacent sequences: A011956 A011957 A011958 * A011960 A011961 A011962

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved