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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 (list; graph; refs; listen; history; text; internal format)
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(n-a(n-1))

+ a(n-1-a(n-2)-a(n-2-a(n-2)))

+ a(n-2-a(n-3)-a(n-3-a(n-3)) - a(n-3-a(n-3)-a(n-3-a(n-3)))). - 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

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Last modified December 9 22:27 EST 2019. Contains 329880 sequences. (Running on oeis4.)