A294014 - OEIS

%I #13 Oct 27 2017 22:21:32

%S 220284,11841210,26202924,50205564,62326368,1074410856,1228514595,

%T 1729618416,6302076084,6692866992,6709571145,6961587633,7975088730,

%U 100485124155,122265139815,122368123152,141664153176,142310168730,171856176336,176272180848,185368203432,196724202444,280540365084

%N Concatenation of the members of the n-th amicable pair.

%C a(n) is the concatenation of A002025(n) and A002046(n).

%C a(n) is the concatenation of A259180(2n-1) and A259180(2n).

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/AmicablePair.html">Amicable Pair</a>

%e For n = 1 the members of the first amicable pair are 220 and 284, so a(1) = 220284.

%e For n = 9 the members of the 9th amicable pair are 63020 and 76084, so a(9) = 6302076084.

%Y Cf. A002025, A002046, A063990, A007908, A259180 (amicable pairs), A265757.

%K nonn,base

%O 1,1

%A _Omar E. Pol_, Oct 27 2017