A083935 Inverse function of N -> N injection A083934.

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

Offset

0,16

Comments

a(0)=0 because A083934(0)=0, but a(n) = 0 also for those n which do not occur as values of A083934. All positive natural numbers occur here once.

Links

Table of n, a(n) for n=0..100.

Prog

(MIT Scheme:) (define (A083935 n) (let* ((b (A014486 n)) (c (if (zero? (modulo b 3)) (A059905 (/ b 3)) 0))) (if (zero? (A059906 (/ b 3))) (A080300 c) 0)))

Crossrefs

a(A080934(n)) = n for all n. Cf. A083925-A083929, A014486, A080300, A059905, A059906.

Sequence in context: A186034 A280843 A221146 * A053201 A028605 A319532

Adjacent sequences: A083932 A083933 A083934 * A083936 A083937 A083938

Keyword

nonn

Author

Antti Karttunen, May 13 2003

Status

approved