A303910 Largest positive integer m with pi(m*n) = m + n, where pi(x) denotes the number of primes not exceeding x.

41, 148, 409, 998, 2597, 6424, 15889, 39970, 100192, 251637, 637063, 1617110, 4124272, 10553278, 27066824, 69709557, 179992524, 465769748, 1208198402, 3140421406, 8179001739, 21338685037, 55762148901, 145935688930, 382465573384, 1003652346785, 2636913002779

Offset

5,1

Comments

a(n) >= A281197(n) >= A247600(n).

Links

Table of n, a(n) for n=5..31.

Crossrefs

Cf. A247600, A281197.

Sequence in context: A044754 A254898 A217087 * A146330 A146350 A050954

Adjacent sequences: A303907 A303908 A303909 * A303911 A303912 A303913

Keyword

nonn

Author

Chai Wah Wu, May 02 2018

Status

approved