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A122231 Iterates of A122227, starting from A122227(4)=17. 3
4, 17, 64, 183, 560, 2036, 6397, 20414, 79204, 262714, 870210, 3640880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

PROG

(Scheme:) (define (A122231 n) (if (= 1 n) 4 (A122227 (A122231 (- n 1)))))

CROSSREFS

Cf. A122232, A122233.

Sequence in context: A339286 A252815 A191272 * A119916 A209375 A005784

Adjacent sequences:  A122228 A122229 A122230 * A122232 A122233 A122234

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 14 2006

STATUS

approved

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Last modified April 12 17:17 EDT 2021. Contains 342929 sequences. (Running on oeis4.)