id:A060417 - OEIS Search Results

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Number of different decimal digits in n-th prime.

+0
1

1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 2, 3, 2, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 2, 3, 3, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 2, 2, 3, 2, 2, 3, 3, 2, 3, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3 (list; graph; listen)

	OFFSET	`1,6`
	FORMULA	`Table[Length[Union[IntegerDigits[Prime[w]]]], {w, 1, 1000}]`
	EXAMPLE	`The maximum is 10. Thus 1234567891 is a prime with 9 and 123456789011 with 10 different decimal digits.`
	CROSSREFS	`A055642.` `Sequence in context: A087104 A069926 A077429 this_sequence A097944 A037203 A032556` `Adjacent sequences: A060414 A060415 A060416 this_sequence A060418 A060419 A060420`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Apr 05 2001`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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