0,2

a(n) gives the number of integers k <= A259934(n) for which A155043(k) = n = A155043(A259934(n)).

Antti Karttunen, Table of n, a(n) for n = 0..10000

a(n) = A263259(A259934(n)).

(Scheme)

(define (A263267 n) (A263259 (A259934 n)))

Cf. A155043, A259934, A263259, A263265, A263280.

Cf. also A261103.

Sequence in context: A131296 A267808 A239852 * A262507 A151679 A077664

Adjacent sequences: A263276 A263277 A263278 * A263280 A263281 A263282

nonn

Antti Karttunen, Nov 24 2015

approved