id:A063579 - OEIS Search Results

Search: id:A063579

Displaying 1-1 of 1 results found.

page 1

Smallest power of 4 having just n 4's in its decimal representation.

+0
1

2, 1, 9, 11, 32, 53, 64, 75, 82, 69, 91, 134, 144, 161, 189, 133, 132, 198, 192, 253, 225, 219, 268, 236, 284, 252, 255, 374, 296, 315, 355, 372, 404, 421, 414, 450, 361, 538, 501, 471, 459, 482, 533, 544, 445, 666, 640, 586, 615, 565, 665 (list; graph; listen)

	OFFSET	`0,1`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[4^k], 4] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A132744 A059604 A048160 this_sequence A078623 A099599 A085488` `Adjacent sequences: A063576 A063577 A063578 this_sequence A063580 A063581 A063582`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

page 1

Search completed in 0.002 seconds

Last modified March 19 13:18 EDT 2010. Contains 173632 sequences.

AT&T Labs Research