A091767 - OEIS

%I #5 Dec 05 2013 19:56:45

%S 1,3,8,9,10,11,17,19,21,27,28,31,38,42,43,44,51,52,54,55,57,58,61,68,

%T 73,74,75,76,77,89,93,94,95,97,102,103,111,112,114,115,117,118,119,

%U 123,124,126,138,144,145,146,147,153,156,161,174,175,176,177,180,182,184,185

%N a(n) is the largest number such that all numbers from 1 to a(n) can be expressed using first n terms of A091766.

%e Using first three terms 1,2 and 6 of A091766, all numbers up to 8 can be obtained in this manner. (1), (2), (3=1+2), (4= 6-2), (5=6-1), (6), (7=6+1), (8=6+2), hence a(3) = 8.

%Y Cf. A091766, A000244.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Feb 08 2004

%E More terms from _David Wasserman_, Apr 24 2006