A319874 - cp's OEIS frontend

A319874 a(n) = 10987654321 + 20191817161514131211 + ... + (up to the n-th term).

n	a(n)
1	10
2	90
3	720
4	5040
5	30240
6	151200
7	604800
8	1814400
9	3628800
10	3628800
11	3628820
12	3629180
13	3635640
14	3745080
15	5489280
16	31536000
17	394329600
18	5082739200
19	60952953600
20	670446201600
21	670446201630
22	670446202470
23	670446225960
24	670446859320
25	670463302320
26	670873719600

[10, 90, 720, 5040, 30240, 151200, 604800, 1814400, 3628800, 3628800, 3628820, 3629180, 3635640, 3745080, 5489280, 31536000, 394329600, 5082739200, 60952953600, 670446201600, 670446201630, 670446202470, 670446225960, 670446859320, 670463302320, 670873719600]

cp's OEIS Frontend

A319874 a(n) = 10987654321 + 20191817161514131211 + ... + (up to the n-th term).

Table of values

List of values

cp's OEIS Frontend

A319874 a(n) = 10*9*8*7*6*5*4*3*2*1 + 20*19*18*17*16*15*14*13*12*11 + ... + (up to the n-th term).

Table of values

List of values

A319874 a(n) = 10987654321 + 20191817161514131211 + ... + (up to the n-th term).