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A124894
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Number of base 16 circular n-digit numbers with adjacent digits differing by 2 or less.
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0
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1, 16, 74, 274, 1182, 5146, 22988, 104008, 475702, 2193322, 10178844, 47489128, 222537384, 1046705104, 4938809502, 23367231454, 110821701894, 526680449962, 2507653172738, 11959006821214, 57115337351332, 273132653565388
(list; graph; refs; listen; history; internal format)
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