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A091230
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Iterates of A014580, starting with a(0) = 1, a(n) = A014580^(n)(1). [Here A014580^(n) means the n-th fold application of A014580].
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6
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1, 2, 3, 7, 25, 137, 1123, 13103, 204045, 4050293, 99440273
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OFFSET
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0,2
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LINKS
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FORMULA
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a(0)=1, a(n) = A014580(a(n-1)). [The defining recurrence].
Other identities. For all n >= 0, the following holds:
(End)
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PROG
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(PARI)
prev=1; i=0; print1(1, ", "); for(n=1, 123456789, if(isA014580(n), i++; if((i == prev), print1(n, ", "); prev=n))) \\ Antti Karttunen, Aug 02 2014
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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