1,3

a(n) = A213726(A218548(n)).

A218548(7)=224, A213726(224)=7 thus a(7)=7 as there are the following seven leaves of beanstalk (i.e. terms of A055938): 233, 234, 235, 238, 245, 250 and 251 that will pass through 224, when an iterative process of x-A000120(x) (see A071542) is applied to them several times.

(Scheme) (define (A218549 n) (A213726 (A218548 n)))

Cf. A218550.

Sequence in context: A101505 A259625 A068713 * A354970 A099523 A049806

Adjacent sequences: A218546 A218547 A218548 * A218550 A218551 A218552

Antti Karttunen, Nov 04 2012

approved