A359148 1, together with numbers k such that A173426(k) is prime.

1, 10, 2446

Offset

1,2

Comments

Many of the comments following the "Most Wanted Prime" video assumed that A173426(1) was 11, and so "Numbers k such that A173426(k) is prime" should begin 1, 10, 2446, ... This is incorrect, A173426(1) = 1 and is not prime.

However, if the 1 is omitted the sequence is too short to include in the OEIS, so the present sequence will serve as a place-holder until we find the next term.

Its inclusion could also be justified by the OEIS policy of including published but erroneous sequences to serve as pointers to the correct versions.

Serge Batalov comments (see A173426) that a(4) >= 60000.

Links

Table of n, a(n) for n=1..3.

Brady Haran and N. J. A. Sloane, Most Wanted Prime, Numberphile video, December 2021.

Index entries for sequences related to Most Wanted Primes video

Crossrefs

Cf. A173426, A360503.

Sequence in context: A155870 A369811 A167775 * A249675 A047945 A327002

Adjacent sequences: A359145 A359146 A359147 * A359149 A359150 A359151

Keyword

nonn,base,more,bref,hard

Author

N. J. A. Sloane, Feb 17 2023

Status

approved