Category Archives: problems and puzzles
Jacobsthal numbers
In an item published here last May I stumbled across the sequence 1 3 5 11 21 43 85 171 341 683 1365 2731 5461 10923 21845 43691 87381 174763 349525 699051 which I dubbed “the oddest numbers” but which … Continue reading
Posted in computing, mathematics, problems and puzzles
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