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a(n) = A213725(A218548(n))
3

%I #8 Feb 08 2013 04:57:30

%S 0,1,2,3,4,5,6,7,8,10,13,19,15,16,27,39,51,67

%N a(n) = A213725(A218548(n))

%C a(n) tells the maximum depth + 1 of the n-th record size finite side-tree in the infinite beanstalk.

%e a(7)=6 as the finite tree of 7 leaves (233, 234, 235, 238, 245, 250 and 251) and 6 internal vertices (244, 239, 232, 229, 228 and 224) rooted at 224 has the maximum depth of 5 (the path 224 -> 228 -> 232 -> 239 -> 244 -> 250/251).

%o (Scheme): (define (A218550 n) (A213725 (A218548 n)))

%Y Cf. A218549.

%K nonn

%O 1,3

%A _Antti Karttunen_, Nov 04 2012