A244884 - cp's OEIS frontend

A244884 Expansion of (-2 +x^2 +x -xsqrt(1-2x-3x^2))/(-1 +x -sqrt(1-2x-3*x^2)).

n	a(n)
0	1
1	1
2	1
3	2
4	5
5	12
6	30
7	76
8	196
9	512
10	1353
11	3610
12	9713
13	26324
14	71799
15	196938
16	542895
17	1503312
18	4179603
19	11662902
20	32652735
21	91695540
22	258215664
23	728997192
24	2062967382
25	5850674704
26	16626415975
27	47337954326
28	135015505407
29	385719506620
30	1103642686382

[1, 1, 1, 2, 5, 12, 30, 76, 196, 512, 1353, 3610, 9713, 26324, 71799, 196938, 542895, 1503312, 4179603, 11662902, 32652735, 91695540, 258215664, 728997192, 2062967382, 5850674704, 16626415975, 47337954326, 135015505407, 385719506620, 1103642686382]

cp's OEIS Frontend

A244884 Expansion of (-2 +x^2 +x -xsqrt(1-2x-3x^2))/(-1 +x -sqrt(1-2x-3*x^2)).

Table of values

List of values

cp's OEIS Frontend

A244884 Expansion of (-2 +x^2 +x -x*sqrt(1-2*x-3*x^2))/(-1 +x -sqrt(1-2*x-3*x^2)).

Table of values

List of values

A244884 Expansion of (-2 +x^2 +x -xsqrt(1-2x-3x^2))/(-1 +x -sqrt(1-2x-3*x^2)).