26 characters in the Sidetic Unicode block.
U+10940SIDETIC LETTER N01U+10941SIDETIC LETTER N02U+10942SIDETIC LETTER N03U+10943SIDETIC LETTER N04U+10944SIDETIC LETTER N05U+10945SIDETIC LETTER N06U+10946SIDETIC LETTER N07U+10947SIDETIC LETTER N08U+10948SIDETIC LETTER N09U+10949SIDETIC LETTER N10U+1094ASIDETIC LETTER N11U+1094BSIDETIC LETTER N12U+1094CSIDETIC LETTER N13U+1094DSIDETIC LETTER N14U+1094ESIDETIC LETTER N15U+1094FSIDETIC LETTER N16U+10950SIDETIC LETTER N17U+10951SIDETIC LETTER N18U+10952SIDETIC LETTER N19U+10953SIDETIC LETTER N20U+10954SIDETIC LETTER N21U+10955SIDETIC LETTER N22U+10956SIDETIC LETTER N23U+10957SIDETIC LETTER N24U+10958SIDETIC LETTER N25U+10959SIDETIC LETTER N26