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

Author

Antti Karttunen, Nov 25 2016

Keywords

• nonn

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

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.

Programs

Scheme

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

Formula

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