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A236833 a(n) = number of times n occurs in A234741. 9
1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 4, 1, 1, 2, 1, 1, 2, 1, 0, 1, 2, 1, 2, 2, 1, 1, 1, 4, 1, 1, 1, 1, 3, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 0, 4, 1, 2, 2, 0, 1, 3, 2, 1, 2, 1, 1, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 1, 4, 1, 1, 3, 1, 2, 1, 1, 3, 1, 6, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Number of distinct values k such that A234741(k) = n.

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8192

FORMULA

a(2n) = a(n).

This should also have a direct formula, mirroring the formula for A236853. Cf. also A236861.

PROG

(Scheme, counting cases empirically with a naive loop. A234742 gives an absolute upper bound for any inverse of A234741):

(define (A236833 n) (let ((u (A234742 n))) (let loop ((k n) (ntimes 0)) (cond ((> k u) ntimes) ((= (A234741 k) n) (loop (+ k 1) (+ ntimes 1))) (else (loop (+ k 1) ntimes))))))

CROSSREFS

A236834 gives the positions of zeros, A236835 the positions of terms larger than one, A236841 the positions of terms other than zero.

Cf. A234741, A236853, A236861.

Sequence in context: A277873 A032542 A107038 * A043278 A125238 A025896

Adjacent sequences:  A236830 A236831 A236832 * A236834 A236835 A236836

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jan 31 2014

STATUS

approved

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Last modified July 15 16:09 EDT 2019. Contains 325049 sequences. (Running on oeis4.)