A278487 Primes p such that p+1 is in A276573, the infinite trunk of least squares beanstalk.

2, 5, 7, 17, 23, 29, 31, 37, 47, 71, 79, 89, 101, 107, 127, 151, 157, 167, 191, 197, 199, 223, 239, 263, 269, 271, 293, 311, 317, 337, 359, 367, 383, 389, 421, 433, 439, 443, 449, 461, 463, 479, 487, 503, 509, 521, 541, 593, 599, 607, 619, 631, 647, 653, 677, 709, 719, 727, 751, 773, 797, 809, 823, 839, 857, 863, 881, 887, 911, 919

Offset

1,1

Comments

These seem to be substantially more common than A277888, even though odd terms are slightly more common in A276573 than the even terms. See also comments in A277487.

Links

Antti Karttunen, Table of n, a(n) for n = 1..5050

Formula

a(n) = A278486(n) - 1 = A276573(A278485(n)) - 1.

Prog

(Scheme) (define (A278487 n) (+ -1 (A276573 (A278485 n))))

Crossrefs

One less than A278486.

No common terms with A277888, some common terms with A278494.

Cf. A277486 (gives the count of these primes in each range [n^2, (n+1)^2]).

Cf. A002828, A276573, A278485.

Sequence in context: A378620 A110254 A019084 * A176676 A307452 A066028

Adjacent sequences: A278484 A278485 A278486 * A278488 A278489 A278490

Keyword

nonn

Author

Antti Karttunen, Nov 25 2016

Status

approved