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A249947 as a simple table

na(n)
11
21
33
41
53
61
75
83
91
105
113
121
137
145
153
161
177
185
193

[1,1,3,1,3,1,5,3,1,5,3,1,7,5,3,1,7,5,3]

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Last modified September 21 19:14 EDT 2024. Contains 376087 sequences. (Running on oeis4.)