id:A108065 - OEIS Search Results

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Numbers n such that DENEAT(n!) is prime, where DENEAT(n) = concatenate number of even digits in n, number of odd digits, and total number of digits.

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1, 2, 3, 10, 15, 29, 35, 39, 51, 65, 167, 185, 198, 250, 282, 325, 366, 368, 382, 396, 400, 403, 450, 453, 509, 574, 575, 590, 598, 601, 699, 720, 759, 764, 788, 791, 797, 817, 824, 860, 863, 865, 867, 877, 901, 909, 911, 913, 930, 936, 1066, 1068, 1081, 1145 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`10 is in the sequence because 10! = 3628800 has 6 even digits, 1` `odd digit, and 7 total digits, yielding the prime 617.`
	CROSSREFS	`Cf. A073053.` `Sequence in context: A129315 A075770 A135101 this_sequence A026336 A027913 A081204` `Adjacent sequences: A108062 A108063 A108064 this_sequence A108066 A108067 A108068`
	KEYWORD	`base,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jun 03 2005`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research