A248941 Wrecker ball sequence starting with 17.

17, 16, 14, 11, 7, 2, -4, 3, -5, 4, -6, 5, -7, 6, -8, -23, -39, -22, -40, -21, -1, 20, -2, 21, -3, 22, 48, 75, 47, 18, -12, 19, -13, -46, -80, -45, -9, 28, -10, 29, -11, 30, 72, 115, 71, 26, -20, 27, 75, 124, 74, 23, -29, 24, -30, 25, -31, -88, -146, -87

Offset: 0

Author

Reinhard Zumkeller, Oct 18 2014

Keywords

• sign
• fini

Comments

This is a finite sequence, containing exactly A228474(17) + 1 = 781803 terms.

This is row 17 of table A248939: a(n) = A248939(17,n) for n = 0..781802;

A248952(17) = -4843985 <= a(n) <= 4674389 = A248953(17).

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..9999
• Gordon Hamilton, Wrecker Ball Sequences, Video, 2013

Crossrefs

Cf. A248939, A228474, A248940 (start with 7), A248942 (start with 20).

Programs

Haskell

a248941 n = a248941_list !! n
a248941_list = a248939_row 17