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A071192 Least m>n such that the number of prime factors of m and n differ by 1. 2
2, 4, 4, 5, 6, 7, 9, 9, 11, 11, 14, 14, 14, 17, 17, 18, 21, 21, 21, 21, 23, 23, 25, 27, 27, 27, 33, 33, 33, 33, 33, 36, 37, 37, 37, 42, 38, 41, 41, 42, 46, 46, 46, 46, 46, 47, 49, 54, 50, 51, 52, 54, 55, 63, 59, 63, 59, 59, 62, 63, 62, 63, 65 (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. A071191, A071193.

Sequence in context: A196259 A214880 A071193 * A295012 A308629 A100921

Adjacent sequences:  A071189 A071190 A071191 * A071193 A071194 A071195

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.)