A248940 Wrecker ball sequence starting with 7.

7, 6, 4, 1, -3, 2, -4, 3, -5, -14, -24, -13, -1, 12, -2, 13, 29, 46, 28, 9, -11, 10, -12, 11, 35, 60, 34, 61, 33, 62, 32, 63, 31, 64, 30, 65, 101, 138, 100, 139, 99, 58, 16, -27, 17, -28, 18, -29, 19, -30, 20, -31, 21, -32, 22, -33, 23, -34, 24, -35, 25, -36

Offset: 0

Author

Reinhard Zumkeller, Oct 18 2014

Keywords

• sign
• fini
• full

Comments

Finite sequence with A228474(7) + 1 = 1726 terms;

row 7 of table A248939: a(n) = A248939(7,n) for n = 0..1725;

A248952(7) = -6362 <= a(n) <= 6843 = A248953(7).

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..1725
• Gordon Hamilton, Wrecker Ball Sequences, Video, 2013

Crossrefs

Cf. A248939, A228474, A248941 (start with 17), A248942 (start with 20).

Programs

Haskell

a248940 n = a248940_list !! n
a248940_list = a248939_row 7