A319869 - cp's OEIS frontend

A319869 a(n) = 54321 + 109876 + 1514131211 + ... + (up to the n-th term).

n	a(n)
1	5
2	20
3	60
4	120
5	120
6	130
7	210
8	840
9	5160
10	30360
11	30375
12	30570
13	33090
14	63120
15	390720
16	390740
17	391100
18	397560
19	507000
20	2251200
21	2251225
22	2251800
23	2265000
24	2554800
25	8626800
26	8626830
27	8627670
28	8651160
29	9284520
30	25727520
31	25727555
32	25728710
33	25766790
34	26984160

[5, 20, 60, 120, 120, 130, 210, 840, 5160, 30360, 30375, 30570, 33090, 63120, 390720, 390740, 391100, 397560, 507000, 2251200, 2251225, 2251800, 2265000, 2554800, 8626800, 8626830, 8627670, 8651160, 9284520, 25727520, 25727555, 25728710, 25766790, 26984160]

cp's OEIS Frontend

A319869 a(n) = 54321 + 109876 + 1514131211 + ... + (up to the n-th term).

Table of values

List of values

cp's OEIS Frontend

A319869 a(n) = 5*4*3*2*1 + 10*9*8*7*6 + 15*14*13*12*11 + ... + (up to the n-th term).

Table of values

List of values

A319869 a(n) = 54321 + 109876 + 1514131211 + ... + (up to the n-th term).