A362455 - cp's OEIS frontend

A362455 Squarefree positive integers d such that the dimension of the space of cuspidal harmonic automorphic forms for SL(2, O_{-d}) is zero, where O_{-d} is the ring of integers in Q(sqrt(-d)).

%I A362455 #20 Jul 09 2025 05:01:50
%S A362455 1,2,3,5,6,7,11,15,19,23,31,39,47,71
%N A362455 Squarefree positive integers d such that the dimension of the space of cuspidal harmonic automorphic forms for SL(2, O_{-d}) is zero, where O_{-d} is the ring of integers in Q(sqrt(-d)).
%C A362455 Reid, Alan W., and Colin MacLachlan. "The Arithmetic of hyperbolic 3-manifolds." Graduate Texts in Mathematics 219, Springer (2003).
%H A362455 Alan W. Reid, <a href="https://pi.math.cornell.edu/~thurston/slides/reid.pdf">Arithmetic hyperbolic manifolds</a>, slides of a talk, Cornell University, June 2014.
%H A362455 Karen Vogtmann, <a href="http://pi.math.cornell.edu/~vogtmann/ScannedPapers/1985.0272.pdf">Rational homology of Bianchi groups</a>, Mathematische Annalen 272.3 (1985): 399-419.
%K A362455 nonn,fini,full
%O A362455 1,2
%A A362455 _Gary W. Adamson_ and _N. J. A. Sloane_, May 06 2023, following a suggestion from _Roger L. Bagula_

cp's OEIS Frontend

A362455 Squarefree positive integers d such that the dimension of the space of cuspidal harmonic automorphic forms for SL(2, O_{-d}) is zero, where O_{-d} is the ring of integers in Q(sqrt(-d)).