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A139696 a(n) = the number of divisors of A139695(n). 2
1, 2, 4, 7, 3, 8, 2, 9, 17, 8, 18, 7, 19, 6, 20, 5, 21, 4, 22, 3, 23, 2, 24, 47, 23, 48, 22, 49, 21, 50, 80, 111, 143, 176, 210, 245, 209, 246, 208, 169, 129, 88, 130, 87, 43, 88, 42, 89, 41, 90, 40, 91, 39, 92, 38, 93, 37, 94, 36, 95, 35, 96, 34, 97, 33, 98, 32, 99, 31, 100, 30 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

|a(n)-a(n-1)| = n-1 for all integers >= 2.

LINKS

Ray Chandler, Table of n, a(n) for n=1..90

CROSSREFS

Cf. A139695.

Sequence in context: A256998 A303641 A137282 * A308049 A084332 A081145

Adjacent sequences:  A139693 A139694 A139695 * A139697 A139698 A139699

KEYWORD

nonn

AUTHOR

Leroy Quet, Apr 29 2008

EXTENSIONS

a(10)-a(90) from Ray Chandler, Jul 08 2009

STATUS

approved

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Last modified September 20 07:59 EDT 2019. Contains 327214 sequences. (Running on oeis4.)