This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A359296 #13 Jan 03 2023 14:50:32 %S A359296 4973316,5073691 %N A359296 Absolute discriminants of imaginary quadratic fields with elementary bicyclic 7-class group and capitulation type the identity permutation. %C A359296 An algebraic number field with this capitulation type has a 7-class field tower of precise length 2 with Galois group isomorphic to the Schur sigma-group SmallGroup(16807,7). It is a solution to the problem posed by Olga Taussky-Todd in 1970. %H A359296 D. C. Mayer, <a href="https://doi.org/10.5802/jtnb.842">The distribution of second p-class groups on coclass graphs</a>, J. Théor. Nombres Bordeaux 25 (2013), no. 2, 401-456. Sec. 3.5.4, p. 450. %H A359296 D. C. Mayer, <a href="http://arxiv.org/abs/1403.3833">The distribution of second p-class groups on coclass graphs</a>, arXiv:1403.3833 [math.NT], 2014. %H A359296 O. Taussky-Todd, <a href="https://doi.org/10.1515/crll.1969.239-240.435">A remark concerning Hilbert's Theorem 94</a>, J. reine angew. Math. 239/240 (1970), 435-438. %e A359296 The second, respectively first, imaginary quadratic field with 7-class group (7,7) and identity capitulation (12345678) has discriminant -5073691, respectively -4973316, and was discovered by Daniel C. Mayer on 26 October 2019, respectively 09 November 2019. It has ordinal number 555, respectively 545, in the sequence of all imaginary quadratic fields with 7-class group (7,7). %Y A359296 Cf. A359291. %K A359296 nonn,more,hard,bref %O A359296 1,1 %A A359296 _Daniel Constantin Mayer_, Dec 24 2022