A294014 Concatenation of the members of the n-th amicable pair.

220284, 11841210, 26202924, 50205564, 62326368, 1074410856, 1228514595, 1729618416, 6302076084, 6692866992, 6709571145, 6961587633, 7975088730, 100485124155, 122265139815, 122368123152, 141664153176, 142310168730, 171856176336, 176272180848, 185368203432, 196724202444, 280540365084

Offset

1,1

Comments

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

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

Links

Table of n, a(n) for n=1..23.

Eric Weisstein's World of Mathematics, Amicable Pair

Example

For n = 1 the members of the first amicable pair are 220 and 284, so a(1) = 220284.
For n = 9 the members of the 9th amicable pair are 63020 and 76084, so a(9) = 6302076084.

Crossrefs

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

Sequence in context: A254905 A257207 A204968 * A234489 A321160 A223369

Adjacent sequences: A294011 A294012 A294013 * A294015 A294016 A294017

Keyword

nonn,base

Author

Omar E. Pol, Oct 27 2017

Status

approved