Enable "Gijswijt’s Sequence"

Closes #724

Author: JRaspass

config/holes.toml

@@ -892,7 +892,6 @@ preamble = '''
 
 ['Gijswijt’s Sequence']
 category = 'Sequence'
-experiment = 724
 links = [
     { name = 'OEIS A090822', url = '//oeis.org/A090822' },
     { name = 'Wikipedia',    url = "//en.wikipedia.org/wiki/Gijswijt's_sequence" },

sql/a-schema.sql

@@ -30,10 +30,11 @@ CREATE TYPE hole AS ENUM (
     'collatz', 'css-colors', 'cubes', 'day-of-week', 'diamonds', 'divisors',
     'emirp-numbers', 'emirp-numbers-long', 'emojify', 'evil-numbers',
     'evil-numbers-long', 'fibonacci', 'fizz-buzz', 'foo-fizz-buzz-bar',
-    'forsyth-edwards-notation', 'fractions', 'game-of-life', 'happy-numbers',
-    'happy-numbers-long', 'hexdump', 'intersection', 'inventory-sequence',
-    'isbn', 'jacobi-symbol', 'kolakoski-constant', 'kolakoski-sequence',
-    'leap-years', 'levenshtein-distance', 'leyland-numbers', 'look-and-say',
+    'forsyth-edwards-notation', 'fractions', 'game-of-life',
+    'gijswijts-sequence', 'happy-numbers', 'happy-numbers-long', 'hexdump',
+    'intersection', 'inventory-sequence', 'isbn', 'jacobi-symbol',
+    'kolakoski-constant', 'kolakoski-sequence', 'leap-years',
+    'levenshtein-distance', 'leyland-numbers', 'look-and-say',
     'lucky-numbers', 'lucky-tickets', 'maze', 'medal-tally', 'morse-decoder',
     'morse-encoder', 'musical-chords', 'niven-numbers', 'niven-numbers-long',
     'number-spiral', 'odious-numbers', 'odious-numbers-long',