A299109 Probable primes in A030221.

29, 139, 3191, 15289, 350981, 1681651, 20344613659, 2237722536169, 5650248517599839, 1464318118372209903213451940281613111, 471219735266432821374794400248484805597413615642086220363989152195627985749609

Offset

1,1

Comments

From a problem in A269254. For detailed theory, see [Hone].

Subsequent terms have too many digits to display.

Links

Table of n, a(n) for n=1..11.

Andrew N. W. Hone, et al., On a family of sequences related to Chebyshev polynomials, arXiv:1802.01793 [math.NT], 2018.

Formula

a(n) = A030221(A299101(n)).

Crossrefs

Positions of primes in A030221, A294099 (row 5).

Cf. A285992, A299107, A299109, A088165, A117522, A299100, A299101, A113501, A269253, A269254, A298675, A298677, A298878, A299045, A299071.

Sequence in context: A124957 A126416 A023277 * A302542 A123845 A297722

Adjacent sequences: A299106 A299107 A299108 * A299110 A299111 A299112

Keyword

nonn,hard,more

Author

L. Edson Jeffery, Bob Selcoe and Andrew Hone, Feb 02 2018

Status

approved