id:A105194 - OEIS Search Results

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Number of distinct prime factors of the concatenation of two consecutive odd numbers.

+0
1

1, 2, 1, 2, 2, 2, 2, 2, 3, 1, 2, 1, 1, 2, 2, 3, 2, 2, 1, 2, 4, 3, 2, 3 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`The number of distinct prime factors of 13 is 1 since it is a prime, so the first term is 1.`
	CROSSREFS	`Adjacent sequences: A105191 A105192 A105193 this_sequence A105195 A105196 A105197` `Sequence in context: A072628 A068212 A064131 this_sequence A008335 A106031 A055175`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 11 2005`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.