A085897 - OEIS

A085897

Group the natural numbers such that the product of the n-th 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.

%I #7 Aug 23 2014 13:45:59

%S 1,2,3,5,9,15,19,25,33,43,53,65,79,91,105,121,135,153,171,191,209,231,

%T 253,273,297,321,349,377,403,433,465,497,527,561,595,631,665,705,745,

%U 783,823,865,907,951,993,1035,1081,1129,1177,1225,1277,1325,1377,1431

%N Group the natural numbers such that the product of the n-th 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.

%Y Cf. A085895, A085896, A085898.

%K nonn

%O 0,2

%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 10 2003

%E More terms from _Ray Chandler_, Sep 13 2003