A255507 First differences of A255437.

1, 1, -2, 2, 2, 1, 1, 1, -7, 2, 2, 5, 1, 1, 1, 1, 1, -14, 2, 2, 2, 10, 1, 1, 1, 1, 1, 1, 1, -23, 2, 2, 2, 2, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, -34, 2, 2, 2, 2, 2, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -47, 2, 2, 2, 2, 2, 2, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset

1,3

Links

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

Prog

(Haskell)
a255507 n = a255507_list !! (n-1)
a255507_list = zipWith (-) (tail a255437_list) a255437_list

Crossrefs

Cf. A255437, A255878.

Sequence in context: A139755 A213366 A212648 * A195052 A104637 A188795

Adjacent sequences: A255504 A255505 A255506 * A255508 A255509 A255510

Keyword

sign

Author

Reinhard Zumkeller, Mar 23 2015

Status

approved