

A085897


Group the natural numbers such that the product of the nth group is divisible by 2^n . (1), (2) (3,4), (5,6,7,8), (9,10,11,12,13,14,),(15,16,17,18),... Sequence contains the first term of the groups.


3



1, 2, 3, 5, 9, 15, 19, 25, 33, 43, 53, 65, 79, 91, 105, 121, 135, 153, 171, 191, 209, 231, 253, 273, 297, 321, 349, 377, 403, 433, 465, 497, 527, 561, 595, 631, 665, 705, 745, 783, 823, 865, 907, 951, 993, 1035, 1081, 1129, 1177, 1225, 1277, 1325, 1377, 1431
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