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A025494 Squares which are the sum of factorials of distinct integers (probably finite). 12

%I #23 Sep 26 2020 01:25:53

%S 1,4,9,25,121,144,729,841,5041,5184,45369,46225,363609,403225,3674889,

%T 1401602635449

%N Squares which are the sum of factorials of distinct integers (probably finite).

%C No other elements < 31!. - Paul.Jobling(AT)WhiteCross.com, Aug 10 2000

%C If there are any terms in either A014597 or A025494 beyond the last one given (i.e., n = 1183893 in A014597; equivalently n^2 = 1401602635449 in A025494), then n^2 must be greater than 48! (about 1.24139*10^61). - _Jon E. Schoenfield_, Aug 04 2006

%Y Cf. A002034, A018194, A051760, A051761, A014597, A059589.

%Y Subsequence of A059589.

%K nonn

%O 1,2

%A _David W. Wilson_

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)