A136563 Leftmost column of triangle A136561.

1, 2, 4, -5, 13, -30, 75, -200, 524, -1299, 3038, -6762, 14482, -30162, 61691, -124998, 252744, -512805, 1047661, -2158235, 4481801, -9368303, 19674518, -41437744, 87399483, -184412912, 388975790, -819684340, 1724741941, -3621720214, 7585569484, -15839701483

Offset: 1

Author

Leroy Quet, Jan 06 2008

Keywords

• sign

Comments

Requiring that the absolute values of the differences in the difference triangle only occur at most once each leads to the Zorach additive triangle. (See A035312.) The leftmost column of the Zorach additive triangle is A035311.

Crossrefs

Cf. A035311, A136561, A136562.

Extensions

More terms from Andrey Zabolotskiy, May 29 2017