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Search: id:A047987
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| A047987 |
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Define value of a number m (A047988) as follows: start with m and reach 2 by repeatedly either dividing by d where d <= the square root or by adding or subtracting 1. The division steps are free, but adding or subtracting 1 costs 1 point. The "value" of m is the smallest cost to reach 2. Sequence gives numbers with value 4. |
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2
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| 3976733, 8053483, 9942523, 10197427, 15126557, 28623773, 32269037
(list; graph; listen)
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