A049159 Recip transform of 2*(1 + x^3 + x^4 + x^5)-1/(1-x).

1, 1, 3, 9, 31, 111, 415, 1591, 6229, 24773, 99795, 406225, 1668071, 6900295, 28725759, 120243143, 505751889, 2136282633, 9057752963, 38534668209, 164439768551, 703658271103, 3018625303199, 12979441615631, 55926921211749

Offset

0,3

Comments

Sign diagram of generating sequence: +--+++---------...

Links

Table of n, a(n) for n=0..24.

Crossrefs

Sequence in context: A049170 A049174 A209335 * A101473 A056334 A063032

Adjacent sequences: A049156 A049157 A049158 * A049160 A049161 A049162

Keyword

nonn

Author

Olivier Gérard

Status

approved