1,1

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.

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

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

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

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: A068360 A110254 A019084 * A176676 A307452 A066028

Adjacent sequences: A278484 A278485 A278486 * A278488 A278489 A278490

nonn

Antti Karttunen, Nov 25 2016

approved