A115385 - OEIS

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A115385

Numbers that are the product of the squares of their nonzero digits.

%I #10 Feb 08 2022 08:08:35

%S 1,914457600,3657830400,2662333328088524390400

%N Numbers that are the product of the squares of their nonzero digits.

%C a(5) <= 471982452444268043164418193461982580062141693296640000. - _Jon E. Schoenfield_, Feb 07 2022

%e 914457600 = 9^2 * 1^2 * 4^2 * 4^2 * 5^2 * 7^2 * 6^2.

%Y Cf. A061863.

%K base,nonn,more

%O 1,2

%A _Giovanni Resta_, Jan 21 2006