1,3

The supremum occurs near the point (-0.20710786...) + (1.12275706...)*i.

Table of n, a(n) for n=1..87.

Math.StackExchange, Supremum of all y-coordinates of the Mandelbrot set

1.122757063632597484616...

Sequence in context: A011146 A241370 A197735 * A223000 A058625 A006748

Adjacent sequences: A249490 A249491 A249492 * A249494 A249495 A249496

nonn,cons

Nathaniel Johnston, Oct 30 2014

approved