A103970 - cp's OEIS frontend

A103970 Expansion of (1 - sqrt(1 - 4x - 12x^2))/(2*x).

n	a(n)
0	1
1	4
2	8
3	32
4	128
5	576
6	2688
7	13056
8	65024
9	330752
10	1710080
11	8962048
12	47497216
13	254132224
14	1370849280
15	7447117824
16	40707293184
17	223731253248
18	1235630948352
19	6853893292032
20	38166664839168
21	213288826699776
22	1195775593807872
23	6723691157127168
24	37908469021409280
25	214260335517892608
26	1213784937073737728
27	6890689428042285056

[1, 4, 8, 32, 128, 576, 2688, 13056, 65024, 330752, 1710080, 8962048, 47497216, 254132224, 1370849280, 7447117824, 40707293184, 223731253248, 1235630948352, 6853893292032, 38166664839168, 213288826699776, 1195775593807872, 6723691157127168, 37908469021409280, 214260335517892608, 1213784937073737728, 6890689428042285056]

cp's OEIS Frontend

A103970 Expansion of (1 - sqrt(1 - 4x - 12x^2))/(2*x).

Table of values

List of values

cp's OEIS Frontend

A103970 Expansion of (1 - sqrt(1 - 4*x - 12*x^2))/(2*x).

Table of values

List of values

A103970 Expansion of (1 - sqrt(1 - 4x - 12x^2))/(2*x).