A283832 First differences of A280774.

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

Offset: 1

Author

N. J. A. Sloane, Mar 22 2017, following a posting to the Sequence Fans Mailing List by Hugo van der Sanden

Keywords

• nonn

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

• N. J. A. Sloane, Table of n, a(n) for n = 1..25317

Crossrefs

Cf. A280864, A280774.