Can someone explain these instructions to me?
Change to larger needles and proceed in stocking st inc 1 st each
end of needle on 5th and following 4th rows to 58 (66-62) sts and
then on following 6th rows to 78 (84-84) sts.
Cont even until work from beg measures 20½ (21-21½) ins [52
(53.5-54.5) cm], ending with RS facing for next row.
Shape top: Cast off 11 (12-12) sts beg next 6 rows. Cast off rem
Also, since the pattern doesn’t mention what type of increase to use, is there one that’s best suited for the sleeves?