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A225637 a(n) = A003418(n)/A225629(n). 4
1, 1, 2, 2, 3, 2, 2, 5, 7, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 2, 2, 3, 3, 2, 2, 3, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 6, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

For n >= 2, a(n) is the final factor by which the A225629(n) needs to be multiplied that it finally reaches the fixed point A003418(n) of the column n of A225630.

The first composite, 4, occurs at n=20. The first composite which is not power of prime, namely 6, occurs at n=61.

For all n >= 3, a(n) divides A225558(n).

LINKS

Table of n, a(n) for n=0..100.

PROG

(Scheme): (define (A225637 n) (/ (A003418 n) (A225629 n)))

CROSSREFS

Cf. A003418, A225629, A225636, A225558, A225652, A225656.

Sequence in context: A275383 A206762 A212281 * A185268 A279630 A279632

Adjacent sequences:  A225634 A225635 A225636 * A225638 A225639 A225640

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 13 2013

STATUS

approved

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Last modified June 25 04:02 EDT 2019. Contains 324345 sequences. (Running on oeis4.)