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A143705 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes ((1+2)^3, (2+2)^5, (2+3)^7, (2+3)^3, (2+2)^5, (11+2)^2, (3+13)^2, (7+3)^5,..). 0

%I #4 Mar 30 2012 18:52:27

%S 27,1024,78125,125,1024,169,256,100000,16926659444736,25,441,2097152,

%T 41753905413413116367045797,125,49,4096,16384,29791,1296,8589934592,

%U 2476099,81,72759576141834259033203125,9261,3375

%N (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, 2*7, 3*5,..) becomes ((1+2)^3, (2+2)^5, (2+3)^7, (2+3)^3, (2+2)^5, (11+2)^2, (3+13)^2, (7+3)^5,..).

%e a(8)=(7+3)^5=10^5=100000.

%e a(9)=(2+4)^17=6^17=16926659444736..

%e a(10)=(2+3)^2=5^2=25.

%e a(11)=(19+2)^2=21^2=441.

%e a(12)=(5+3)^7=8^7=2097152,

%e etc.

%Y Cf. A141287, A141261, A136735.

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Nov 13 2008

%E Corrected (161051 removed) and extended by _R. J. Mathar_, Apr 18 2010

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Last modified September 13 22:05 EDT 2024. Contains 375910 sequences. (Running on oeis4.)