OFFSET
0,3
COMMENTS
It appears that 16*a(n) (that is, the sequence 16, 768, 28672, 983040, 32505856, 1056964608, 34091302912, ...) is the number of nonsingular generalized Weierstrass curves over GF(2^n), n>0.
LINKS
Param Parekh, Paavan Parekh, Sourav Deb, and Manish K. Gupta, On the Classification of Weierstrass Elliptic Curves over Z_n, arXiv:2310.11768 [cs.CR], 2023. See Table 1.
PROG
(Python)
def A371193(n): return (1<<n)-1<<(n-1<<2) if n else 0 # Chai Wah Wu, Mar 14 2024
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 14 2024
STATUS
approved