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

Author

Reinhard Zumkeller, Mar 23 2015

Keywords

• sign

Links

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

Crossrefs

Cf. A255437, A255878.

Programs

Haskell

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