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A178799 Difference between consecutive least integers of each prime signature. 2
1, 2, 2, 2, 4, 4, 8, 6, 2, 4, 12, 12, 4, 8, 24, 24, 8, 16, 36, 12, 18, 6, 24, 16, 32, 72, 24, 36, 12, 48, 32, 64, 144, 48, 72, 24, 36, 60, 64, 56, 72, 108, 36, 144, 96, 144, 48, 72, 120, 128, 112, 144, 6, 210, 72, 288, 192, 288, 96, 144, 240, 256, 224, 288, 12, 420, 144, 216 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A025487(n+1) - A025487(n).

PROG

(Haskell)

a178799 n = a178799_list !! (n-1)

a178799_list = zipWith (-) (tail a025487_list) a025487_list

-- Reinhard Zumkeller, Sep 17 2014

CROSSREFS

Cf. A025487

Sequence in context: A132325 A239961 A010238 * A089819 A059888 A230141

Adjacent sequences:  A178796 A178797 A178798 * A178800 A178801 A178802

KEYWORD

easy,nonn

AUTHOR

Will Nicholes, Jun 15 2010

EXTENSIONS

Minor edits by Ray Chandler, Jul 31 2010

STATUS

approved

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Last modified December 22 21:10 EST 2014. Contains 252372 sequences.