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A007202 Crystal ball sequence for hexagonal close-packing.
(Formerly M4899)
+0
1
1, 13, 57, 153, 323, 587, 967, 1483, 2157, 3009, 4061, 5333, 6847, 8623, 10683, 13047, 15737, 18773, 22177, 25969, 30171, 34803, 39887, 45443, 51493, 58057, 65157, 72813, 81047, 89879, 99331, 109423, 120177, 131613, 143753, 156617 (list; graph; listen)
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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