A246501 a(n) is the smallest term of A242719 that is repeated exactly n times, or 0 if there is no such term.

10, 170, 3722, 85040, 273530, 9010484, 3659570, 22972850, 1875409412, 2023830170

Offset

1,1

Comments

We conjecture that, for all n, a(n)>0.

Integer parts of sqrt(a(n)-1) are 3,13,61,291,523,3001,1913,4793,... (as for all terms of A242719, if a(n)-1 is perfect square, then sqrt(a(n)-1) is prime).

Links

Table of n, a(n) for n=1..10.

Crossrefs

Cf. A246502, A242719, A242720.

Sequence in context: A099711 A203532 A325911 * A120977 A034830 A098345

Adjacent sequences: A246498 A246499 A246500 * A246502 A246503 A246504

Keyword

nonn,more

Author

Vladimir Shevelev, Aug 27 2014

Extensions

More terms from Peter J. C. Moses, Aug 27 2014

a(9)-a(10) from Jinyuan Wang, Mar 13 2020

Status

approved