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A050630 a(n+1) is next smallest nontrivial square containing a(n) as a substring, initial term is 4. 7

%I #9 Oct 15 2019 00:03:14

%S 4,49,1849,18496,103184964,7383508103184964,

%T 544680602158273835081031849649

%N a(n+1) is next smallest nontrivial square containing a(n) as a substring, initial term is 4.

%F a(n) = A050631(n)^2.

%Y Starting with a(2)=49, the sequence is identical A050632.

%Y Cf. A050631, A048559, A050636.

%K nonn,base,more

%O 1,1

%A _Patrick De Geest_, Jul 15 1999

%E a(7) from _Max Alekseyev_, Feb 15 2012

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)