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A124950
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Number of base 22 circular n-digit numbers with adjacent digits differing by 2 or less.
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0
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1, 22, 104, 388, 1692, 7432, 33494, 152818, 704692, 3275272, 15320514, 72038098, 340204434, 1612559698, 7667644032, 36559128748, 174730634628, 836872304392, 4015726470338, 19301794774522, 92915156135782, 447886264698862
(list; graph; refs; listen; history; internal format)
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