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A061427 Geometric mean of the digits = 3. In other words the product of the digits is = 3^k where k is the number of digits. +0
4
3, 19, 33, 91, 139, 193, 319, 333, 391, 913, 931, 1199, 1339, 1393, 1919, 1933, 1991, 3139, 3193, 3319, 3333, 3391, 3913, 3931, 9119, 9133, 9191, 9313, 9331, 9911, 11399, 11939, 11993, 13199, 13339, 13393, 13919, 13933, 13991, 19139, 19193 (list; graph; listen)
OFFSET

0,1

EXAMPLE

319 is a term as the geometric mean of digits is (3*1*9) = 27 = 3^3.

CROSSREFS

Cf. A061426-A061430.

Sequence in context: A162307 A128069 A056246 this_sequence A069516 A098856 A062291

Adjacent sequences: A061424 A061425 A061426 this_sequence A061428 A061429 A061430

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 03 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), May 16 2001

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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