A221863 - cp's OEIS frontend

A221863 Expansion of (1-3x+x^2)/(1-9x+28x^2-35x^3+15*x^4-x^5).

n	a(n)
0	1
1	6
2	27
3	110
4	429
5	1637
6	6172
7	23104
8	86090
9	319792
10	1185305
11	4386331
12	16212913
13	59873834
14	220964744
15	815057639
16	3005282745
17	11077802256
18	40824723483
19	150424044413
20	554183037617
21	2041477665799
22	7519722443381
23	27696997721940
24	102010147865915
25	375697698147882

[1, 6, 27, 110, 429, 1637, 6172, 23104, 86090, 319792, 1185305, 4386331, 16212913, 59873834, 220964744, 815057639, 3005282745, 11077802256, 40824723483, 150424044413, 554183037617, 2041477665799, 7519722443381, 27696997721940, 102010147865915, 375697698147882]

cp's OEIS Frontend

A221863 Expansion of (1-3x+x^2)/(1-9x+28x^2-35x^3+15*x^4-x^5).

Table of values

List of values

cp's OEIS Frontend

A221863 Expansion of (1-3*x+x^2)/(1-9*x+28*x^2-35*x^3+15*x^4-x^5).

Table of values

List of values

A221863 Expansion of (1-3x+x^2)/(1-9x+28x^2-35x^3+15*x^4-x^5).