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A122241
Iterates of A122237, starting from 4.
7
4, 22, 54, 169, 516, 1841, 6076, 19256, 66140, 252691, 888179, 2900616
OFFSET
1,1
PROG
(Scheme:) (define (A122241 n) (if (= 1 n) 4 (A122237 (A122241 (- n 1)))))
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Sep 14 2006
STATUS
approved