A352401
The right Aurifeuillian factor of p^p + 1 for primes p congruent to 3 (mod 4).
Original entry on oeis.org
7, 911, 407353, 870542161121, 2498077661567473, 63472256064447557254913, 54382651771205224279713471565249817, 767102704711961850109296220485687497279, 6066304600323886604542912453739225327712511596287519
Offset: 1
870542161121 is the larger Aurifeuillian factor of 19^19 + 1, and 19 is the 4th term of A002145, so a(4) = 870542161121.
A230376
The left Aurifeuillian factor of k^k - 1 for k congruent to 1 (mod 4) and squarefree.
Original entry on oeis.org
11, 1803647, 2699538733, 30778903, 112663560435723374699, 554945667652531, 6243610407478181159725577611, 67643278270835231300426724641533, 253382315888712050791030544452181354268272663, 14710826638296122001733445931451
Offset: 1
1803647 is in the sequence because it is an Aurifeuillian factor of 13^13-1.
A230377
The left Aurifeuillian factor of k^k + 1 for k congruent to 0, 2 or 3 (mod 4) and squarefree.
Original entry on oeis.org
1, 1, 13, 113, 3541, 58367, 2826601, 19231, 113631466919, 9617835527609, 348275601426959, 35522826680397941, 241498479121, 8403855868042458448127, 1161044975606998832441701, 1272844589592126671, 10128165505710094110937686497, 4612290807753604561
Offset: 1
58367 is in the sequence because it is an Aurifeuillian factor of 11^11+1.
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