A260652 The minimal difference between the first and last terms of a set of n coprime numbers.

0, 1, 2, 4, 6, 8, 12, 14, 18, 20, 24, 30, 32, 36, 38, 42, 48, 50, 56, 60, 62, 68, 72, 78, 84, 86, 90, 94, 98, 102, 108, 114, 120, 126, 130, 136, 140, 146, 150, 156, 158, 162, 168, 174, 180, 182

Offset

1,3

Comments

a(n>3) <= prime(n-2) + 1.

Links

Max Barrentine, Table of n, a(n) for n = 1..46

Crossrefs

Cf. A261987, A264482.

Sequence in context: A360971 A249721 A010063 * A324102 A089623 A089681

Adjacent sequences: A260649 A260650 A260651 * A260653 A260654 A260655

Keyword

nonn,more

Author

Max Barrentine, Nov 25 2015

Extensions

a(33)-a(39) from Max Barrentine, Apr 26 2016

a(40)-a(46) from Max Barrentine, Jun 23 2016

Status

approved