A122228 - OEIS

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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

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..15.

PROG

(Scheme:) (define (A122228 n) (if (zero? n) 0 (A122227 (A122228 (- n 1)))))

CROSSREFS

Cf. A122229, A122230, A106191.

Sequence in context: A026995 A018035 A271843 * A018790 A268042 A009436

Adjacent sequences: A122225 A122226 A122227 * A122229 A122230 A122231

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 14 2006

STATUS

approved