A024220 - cp's OEIS frontend

A024220 a(n) = [ (3rd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 1 mod 3}.

n	a(n)
1	2
2	19
3	71
4	188
5	410
6	784
7	1367
8	2226
9	3435
10	5078
11	7249
12	10049
13	13589
14	17990
15	23380
16	29897
17	37689
18	46911
19	57728
20	70315
21	84854
22	101537
23	120566
24	142150
25	166508
26	193869
27	224469
28	258554
29	296380
30	338210
31	384317
32	434984
33	490501
34	551168
35	617295
36	689199

[2, 19, 71, 188, 410, 784, 1367, 2226, 3435, 5078, 7249, 10049, 13589, 17990, 23380, 29897, 37689, 46911, 57728, 70315, 84854, 101537, 120566, 142150, 166508, 193869, 224469, 258554, 296380, 338210, 384317, 434984, 490501, 551168, 617295, 689199]

cp's OEIS Frontend

A024220 a(n) = [ (3rd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 1 mod 3}.

Table of values

List of values