%I A104176
%S A104176 1,1,3,3,7,15,31,55,127,127,255,511,1023,2047,4095,8191,16383,32767,
%T A104176 65535,126975,262143,524287,1048575,2097151,4194303,8388607,16777215,
%U A104176 33554431,67108863,134217727,268435455,536870911,1073741823,2147483647
%N A104176 a(n) = bitwise OR operation applied between every term of n-th row of 
               Pascal's triangle, represented in decimal notation.
%H A104176 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PascalsTriangle.html">Pascal's Triangle</a>
%F A104176 Most but not all terms are of the form 2^n - 1 for some integer n. In 
               the first 1600 terms we have: repeated numbers: 1, 3, 127 and 274877906943. 
               Numbers not of form 2^n -1: 55, 126975.
%e A104176 Row 0 = 1 = 1
%e A104176 Row 1 = 1 OR 1 = 1
%e A104176 Row 2 = 1 OR 2 OR 1 = 3
%e A104176 Row 3 = 1 OR 3 OR 3 OR 1 = 3
%Y A104176 Sequence in context: A056420 A030069 A004043 this_sequence A032294 A146034 
               A032029
%Y A104176 Adjacent sequences: A104173 A104174 A104175 this_sequence A104177 A104178 
               A104179
%K A104176 nonn,tabl
%O A104176 0,3
%A A104176 Andrew G. West (WestA(AT)wlu.edu), Mar 28 2005