A138476 Triangle read by rows: expansion of (1+3*t^2)/(1-t*(2*x-t)).

1, 0, 2, 2, 0, 4, 0, 2, 0, 8, -2, 0, 0, 16, 0, 6, 0, -8, 0, 32, 2, 0, -12, 0, -32, 64, 0, 10, 0, -16, 0, -96, 0, 128, -2, 0, 32, 0, 0, 0, -256, 0, 256, 0, -14, 0, 80, 0, 96, 0, -640, 0, 512

Offset: 1

Author

A. Bannour (managing_office069(AT)yahoo.fr), Mar 19 2008

Keywords

• tabf
• sign

Comments

See A135929 and A138034 for further information.

References

• M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972; see Chapter 22.

Formula

G.f.: (1+3*t^2)/(1-t*(2*x-t)).

Extensions

New name from Joerg Arndt, May 15 2016