A120723 - cp's OEIS frontend

A120723 Expansion of x(1+3x)(1+6x+16x^2)/((1-x)(1+2x)(1-3x-2x^2)).

n	a(n)
1	1
2	11
3	63
4	247
5	887
6	3207
7	11383
8	40679
9	144663
10	515719
11	1835831
12	6540327
13	23289943
14	82955975
15	295436919
16	1052244583
17	3747563927
18	13347268359
19	47536758199
20	169305160871
21	602988299991
22	2147576619847
23	7648703663351

[1, 11, 63, 247, 887, 3207, 11383, 40679, 144663, 515719, 1835831, 6540327, 23289943, 82955975, 295436919, 1052244583, 3747563927, 13347268359, 47536758199, 169305160871, 602988299991, 2147576619847, 7648703663351]

cp's OEIS Frontend

A120723 Expansion of x(1+3x)(1+6x+16x^2)/((1-x)(1+2x)(1-3x-2x^2)).

Table of values

List of values

cp's OEIS Frontend

A120723 Expansion of x*(1+3*x)*(1+6*x+16*x^2)/((1-x)*(1+2*x)*(1-3*x-2*x^2)).

Table of values

List of values

A120723 Expansion of x(1+3x)(1+6x+16x^2)/((1-x)(1+2x)(1-3x-2x^2)).