A192316 - cp's OEIS frontend

A192316 G.f.: A(x) = Sum_{n>=0} x^n * (1+x)^A038722(n), where A038722(n) = floor(sqrt(2*n)+1/2)^2 - n + 1.

n	a(n)
0	1
1	1
2	2
3	4
4	6
5	9
6	21
7	35
8	42
9	70
10	168
11	330
12	471
13	561
14	855
15	1950
16	4402
17	8023
18	11616
19	14245
20	18425
21	33880
22	78519
23	172047
24	320451
25	500579
26	668582
27	819819
28	1113658
29	2046760
30	4599060
31	10174544
32	20102845
33	34677986
34	52310993
35	70115066
36	87683799
37	115847016

[1, 1, 2, 4, 6, 9, 21, 35, 42, 70, 168, 330, 471, 561, 855, 1950, 4402, 8023, 11616, 14245, 18425, 33880, 78519, 172047, 320451, 500579, 668582, 819819, 1113658, 2046760, 4599060, 10174544, 20102845, 34677986, 52310993, 70115066, 87683799, 115847016]

cp's OEIS Frontend

A192316 G.f.: A(x) = Sum_{n>=0} x^n * (1+x)^A038722(n), where A038722(n) = floor(sqrt(2*n)+1/2)^2 - n + 1.

Table of values

List of values