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A031883 First differences of lucky numbers. 16
2, 4, 2, 4, 2, 6, 4, 6, 2, 4, 6, 6, 2, 12, 4, 2, 4, 2, 4, 8, 6, 6, 6, 6, 4, 12, 2, 4, 2, 6, 10, 8, 4, 6, 2, 18, 4, 2, 6, 4, 6, 8, 4, 8, 4, 2, 4, 18, 2, 6, 6, 10, 2, 4, 8, 6, 4, 12, 2, 6, 4, 8, 10, 8, 4, 6, 18, 6, 2, 6, 10, 6, 6, 6, 2, 4, 18, 12, 12, 2, 6, 4, 2, 6, 16, 6, 2, 10, 6, 2, 4, 12, 6, 18, 2, 4, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(n) = A254967(n,n-1). - Reinhard Zumkeller, Feb 11 2015
LINKS
MATHEMATICA
lst = Range[1, 600, 2]; i = 2; While[ i <= (len = Length@lst) && (k = lst[[i]]) <= len, lst = Drop[lst, {k, len, k}]; i++ ]; Rest@lst - Most@lst (* Robert G. Wilson v, May 12 2006 *)
PROG
(Haskell)
a031883 n = a031883_list !! (n-1)
a031883_list = zipWith (-) (tail a000959_list) a000959_list
-- Reinhard Zumkeller, Feb 11 2015
CROSSREFS
Cf. A000959.
Cf. A254967.
Sequence in context: A056672 A037201 A128886 * A366261 A086152 A194577
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)