A218311 Product of the nonzero digits (in base 10) of n^5.

1, 36, 576, 64, 900, 4235364, 112896, 4064256, 2624400, 1, 900, 9437184, 1285956, 45158400, 1093955625, 45158400, 101606400, 19110297600, 740710656, 36, 16384, 7290000, 241864704, 1316818944, 12859560000, 65028096, 585252864, 4064256, 129600, 576, 74649600

Offset: 1

Author

Jonathan Vos Post, Oct 25 2012

Keywords

• nonn
• base
• easy

Comments

This is to 5 as A218145, product of the nonzero digits (in base 10) of

n^3, is to 3. Similar to A053668, which does not exclude zero digits

from the product. This is to the 5th powers A000584 as cubes A000578

are to A218145, and as A218072 is to the squares A000290.

Examples

			a(3) = 36 because 3^5 = 243, and 2*4*3 = 36.
		

Crossrefs

Cf. A000584, A007954, A053668, A218072, A218145.

Programs

Mathematica

Table[Times @@ Select[IntegerDigits[n^5], # > 0 &], {n, 60}]