A178799 Difference between consecutive least integers of each prime signature.

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

Offset: 1

Author

Will Nicholes, Jun 15 2010

Keywords

• easy
• nonn

Links

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

Crossrefs

Cf. A025487

Programs

Haskell

a178799 n = a178799_list !! (n-1)
a178799_list = zipWith (-) (tail a025487_list) a025487_list
-- Reinhard Zumkeller, Sep 17 2014

Formula

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

Extensions

Minor edits by Ray Chandler, Jul 31 2010