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A278582
Numbers n such that the Shimura subgroup Sigma(n) of the Jacobi variety J_0(n) has order 2.
1
20, 21, 24, 32, 48, 64, 72, 96, 100, 144, 147, 199, 288, 576
OFFSET
1,1
REFERENCES
Ling, S., and J. Oesterlé. "The Shimura subgroup of J_0(N)." Astérisque, Vol. 196-197 (1991), 171-203.
CROSSREFS
Cf. A278581.
Sequence in context: A125663 A241850 A138601 * A218539 A295488 A008940
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Nov 30 2016
STATUS
approved