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A248953 Largest terms in wrecker ball sequences starting with n. 7
0, 1, 2, 3, 21, 26, 6, 6843, 8, 14, 10, 72, 365, 366, 14, 15, 352, 4674389, 18, 22, 891114, 21, 102, 23, 31, 7856204, 26, 27, 28, 1700, 61960674, 3702823, 3702824, 3702825, 3702826, 35, 36, 370, 1047903, 1047904, 596, 41, 42, 43, 2976, 45, 341, 260, 261, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

a(n) = largest term in row n of triangle A248939;

a(A000217(n)) = A000217(n).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Gordon Hamilton, Wrecker Ball Sequences, Video, 2013

EXAMPLE

a(0) = max{0} = 0;

a(1) = max{1,0} = 1;

a(2) = max{2,1,-1,-4,0} = 2;

a(3) = max{3,2,0} = 3;

a(4) = max{4,3,1,-2,2,-3,-9,-16,-8,-17,-7,-18,-6,7,21,6,-10,-27,...} = 21;

a(5) = max{5,4,2,-1,3,-2,-8,-15,-7,-16,-6,-17,-5,8,22,7,-9,-26,...} = 26;

a(6) = max{6,5,3,0} = 6;

a(7) = max{7,6,4,1,-3,2,-4,3,-5,-14,-24,-13,-1,12,-2,13,29,46,...} = 6843;

a(8) = max{8,7,5,2,-2,3,-3,4,-4,-13,-23,-12,0} = 8;

a(9) = max{9,8,6,3,-1,4,-2,5,-3,-12,-22,-11,1,14,0} = 14.

PROG

(Haskell)

a248953 n = a248953_list !! n

-- See A248952 for definition of a248953_list.

CROSSREFS

Cf. A248939, A248952, A000217.

Sequence in context: A250181 A024765 A282340 * A090122 A296254 A114749

Adjacent sequences:  A248950 A248951 A248952 * A248954 A248955 A248956

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 18 2014

STATUS

approved

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Last modified February 17 14:12 EST 2018. Contains 299296 sequences. (Running on oeis4.)