A235044 Partial sums of the characteristic function of A091214.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4

Offset: 0

Author

Antti Karttunen, Jan 02 2014

Keywords

• nonn

Comments

Note that this also works as an inverse function of A091214 in a sense that a(A091214(n)) = n for all n>=1.

Links

• Antti Karttunen, Table of n, a(n) for n = 0..4119

Crossrefs

Used to compute A235042. Cf. A066247, A091225, A235043.

Programs

Scheme

(definec (A235044 n) (if (zero? n) n (+ (A235044 (- n 1)) (+ (* (A066247 n) (A091225 n))))))