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A171561 (n-th prime number)^(n-th non-single or nonisolated number) with duplicates removed. 3

%I #7 Aug 29 2014 18:25:40

%S 1,2,3,5,7,8,11,13,17,19,23,27,29,31,32,37,41,43,47,53,59,61,67,71,73,

%T 79,83,89,97,101,103,107,109,113,125,127,128,131,137,139,149,151,157,

%U 163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,243

%N (n-th prime number)^(n-th non-single or nonisolated number) with duplicates removed.

%C The definition is: numbers of the form A000040(i)^A167707(j), sorted, without repetition, any i,j>=1. [From _R. J. Mathar_, May 22 2010]

%e a(1)=2^0=1, a(2)=2^1=2, a(3)=3^1=3, a(4)=5^1=5, a(5)=7^1=7, a(6)=2^3=8.

%Y Cf. A000040 (the prime numbers), A167707 (the non-single or nonisolated numbers).

%K nonn

%O 1,2

%A _Juri-Stepan Gerasimov_, Dec 11 2009, Dec 14 2009

%E Entries checked by _R. J. Mathar_, May 22 2010

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)