

A328980


Erroneous version of A328910: Number of solutions to Erdős's Last Equation in n variables.


3




OFFSET

2,1


COMMENTS

The equation is x_1*x_2*...*x_n = n*(x_1+...+x_n) (n >= 2).
These are the terms are given as f(n) in a table on p. 803 in the cited paper. However, the sets C_L(n) of solutions with L+1 components > 1 can't be nonempty for L = n, as listed there for n = 2 and n = 3. The author (pers. comm.) confirms that a(2) = 2, a(3) = 6 and a(8) = 19. Sequence A328910 gives the correct terms.  M. F. Hasler, Nov 07 2019
Included in accordance with OEIS policy of including published but erroneous sequences to serve as pointers to the correct values.


LINKS

Table of n, a(n) for n=2..8.
Peter Shiu, On Erdős's Last Equation, Amer. Math. Monthly, 126 (2019), 802808; correction, 127:5 (2020), 478.


CROSSREFS

Cf. A328910, A328911.
Sequence in context: A011398 A317850 A181828 * A059101 A091679 A116034
Adjacent sequences: A328977 A328978 A328979 * A328981 A328982 A328983


KEYWORD

dead


AUTHOR

N. J. A. Sloane, Jun 04 2020


STATUS

approved



