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A283832 First differences of A280774. 6
1, 2, 3, 4, 3, 10, 4, 3, 4, 4, 10, 6, 8, 3, 4, 17, 4, 4, 9, 17, 7, 4, 4, 4, 5, 4, 13, 4, 20, 12, 14, 44, 3, 4, 13, 11, 4, 10, 11, 8, 11, 4, 16, 4, 4, 9, 8, 4, 20, 15, 6, 7, 16, 4, 6, 4, 8, 21, 14, 4, 26, 4, 15, 6, 4, 6, 12, 28, 23, 20, 10, 10, 52, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Let s(m) = A280864(m). The sequence gives the lengths of successive segments when A280864 is split after any term s(m) where every prime divisor of s(m) has already divided s(m-1). (Then s(m+1) is the smallest number not yet in A280864 which is relatively prime to s(m).)
See the link "Properties of A280864" in A280864 for more information.
LINKS
CROSSREFS
Sequence in context: A339663 A211507 A295368 * A102086 A009184 A009716
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 22 2017, following a posting to the Sequence Fans Mailing List by Hugo van der Sanden
STATUS
approved

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Last modified July 12 10:18 EDT 2024. Contains 374244 sequences. (Running on oeis4.)