

A324475


k appears t+1 times, where t is the number of trailing zeros in A324474(k).


3



1, 2, 3, 3, 4, 4, 5, 5, 5, 6, 7, 7, 7, 8, 9, 9, 9, 9, 10, 11, 12, 12, 13, 14, 15, 16, 16, 17, 17, 17, 17, 17, 18, 19, 20, 20, 21, 21, 22, 22, 22
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OFFSET

1,2


COMMENTS

Interesting because the recurrence is nested one layer deeper than the recurrences for A046699 and A316628.


LINKS

Table of n, a(n) for n=1..41.
Nathan Fox, Trees, Fibonacci Numbers, and Nested Recurrences, Rutgers University Experimental Math Seminar, Mar 07, 2019


FORMULA

For n>3, a(n) = a(na(n1))
+ a(n1a(n2)a(n2a(n2)))
+ a(n2a(n3)a(n3a(n3))  a(n3a(n3)a(n3a(n3)))).  Nathan Fox, Mar 09 2019


CROSSREFS

Cf. A324474.
A046699, A316628, A324473, A324477 have similar definitions.
Sequence in context: A134995 A194243 A279402 * A189705 A303601 A031247
Adjacent sequences: A324472 A324473 A324474 * A324476 A324477 A324478


KEYWORD

nonn,base,more


AUTHOR

Nathan Fox and N. J. A. Sloane, Mar 09 2019


STATUS

approved



