A380501 Least positive integer v that belongs alongside its opposite -v to the minimal set of integers to add to the set {A377091(k), k = 0..A380938(n)} in order to obtain an integer interval.

338, 365, 365, 393, 420, 420, 451, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 684, 684, 722, 724, 724, 760, 761, 1058, 1058, 4140, 5304, 5513, 5513, 5515

Offset

1,1

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, C++ program

Example

For n = 5: A380938(5) = 840, {A377091(k), k = 0..840} = {-422, -419..419, 422}, to obtain an integer interval, we can add the minimal set {-421, -420, 420, 421}; the least positive integer that appears alongside its opposite in this minimal set is 420; so a(5) = 420.

Prog

(C++) // See Links section.

Crossrefs

Cf. A377091, A380938, A380939.

Sequence in context: A084231 A243483 A234625 * A226539 A066478 A261707

Adjacent sequences: A380498 A380499 A380500 * A380502 A380503 A380504

Keyword

nonn

Author

Rémy Sigrist, Feb 08 2025

Status

approved