Geometric mean of the digits = 4. In other words, the product of the digits is = 4^k where k is the number of digits.

A061428

Geometric mean of the digits = 4. In other words, the product of the digits is = 4^k where k is the number of digits.

Terms

    a(0) =4a(1) =28a(2) =44a(3) =82a(4) =188a(5) =248a(6) =284a(7) =428a(8) =444a(9) =482a(10) =818a(11) =824a(12) =842a(13) =881a(14) =1488a(15) =1848a(16) =1884a(17) =2288a(18) =2448a(19) =2484a(20) =2828a(21) =2844a(22) =2882a(23) =4188a(24) =4248a(25) =4284a(26) =4428a(27) =4444a(28) =4482a(29) =4818

External references