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A045983 Numbers n such that n consecutive integers starting at a(n) have same number of prime divisors. 6
1, 2, 2, 2, 54, 91, 141, 141, 44360, 48919, 218972, 526095, 526095, 526095, 17233173, 127890362, 29138958036 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

a(n) = smallest number k such that the n numbers from k through n+k-1 have the same number of prime divisors.

EXAMPLE

a(5) = 54 as 54, 55, 56, 57, 58 all have 2 prime divisors.

CROSSREFS

Cf. A075041, A075028, A075031.

Sequence in context: A083148 A175910 A075042 * A102384 A125838 A066736

Adjacent sequences:  A045980 A045981 A045982 * A045984 A045985 A045986

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 16 02:30 EST 2012. Contains 205860 sequences.