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A071193 Least m>n such that the number of prime factors of m and n differ at least by 1. 2
2, 4, 4, 5, 6, 7, 8, 9, 11, 11, 12, 13, 14, 16, 16, 17, 18, 19, 20, 21, 23, 23, 24, 25, 27, 27, 29, 29, 30, 31, 32, 33, 36, 36, 36, 37, 38, 40, 40, 41, 42, 43, 44, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 59, 60, 61, 62, 63, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

abs(A001222(a(n)) - A001222(n)) >= 1.

LINKS

Table of n, a(n) for n=1..63.

CROSSREFS

Cf. A071192, A071191.

Sequence in context: A084616 A196259 A214880 * A071192 A295012 A308629

Adjacent sequences:  A071190 A071191 A071192 * A071194 A071195 A071196

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 15 2002

STATUS

approved

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Last modified August 8 08:27 EDT 2020. Contains 336293 sequences. (Running on oeis4.)