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A122228
Iterates of A122227, starting from 0.
3
0, 1, 3, 8, 20, 55, 160, 493, 1579, 5212, 17595, 60462, 210749, 743284, 2647461, 9509504
OFFSET
0,3
PROG
(Scheme:) (define (A122228 n) (if (zero? n) 0 (A122227 (A122228 (- n 1)))))
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Sep 14 2006
STATUS
approved