0,4

a(n) = number of nonzero terms of A179016 <= n.

Partial sums of A213719 from its term A213719(1) onward (A213719(0)=1 not included).

Antti Karttunen, Table of n, a(n) for n = 0..16384

a(0) = 0, for n > 0, a(n) = a(n-1) + A213719(n).

a(n) = A213718(n+1) - 1.

Other identities. For all n >= 0:

a(A179016(n)) = n.

(Scheme, with Antti Karttunen's IntSeq-library, two variants)

(definec (A269371 n) (if (zero? n) n (+ (A213719 n) (A269371 (- n 1)))))

(define A269371 (LEFTINV-LEASTMONO 0 0 A179016))

Cf. A179016, A213718, A213719.

Cf. also A071542, A269381, A269401.

Sequence in context: A153161 A238516 A282692 * A287355 A194171 A004525

Adjacent sequences: A269368 A269369 A269370 * A269372 A269373 A269374

nonn,base

Antti Karttunen, Mar 05 2016

approved