List Of First Hundred Octogonal Numbers

 1st Hundred Octogonal Number

A first 100 Octogonal number.

Octogonal numbers

An octagonal number is a figurate number that represents an octagon.

Formula

= n*(3n-2)

1 to 100 Octogonal Numbers Table

1
8
21
40
65
96
133
176
225
280
341
408
481
560
645
736
833
936
1045
1160
1281
1408
1541
1680
1825
1976
2133
2296
2465
2640
2821
3008
3201
3400
3605
3816
4033
4256
4485
4720
4961
5208
5461
5720
5985
6256
6533
6816
7105
7400
7701
8008
8321
8640
8965
9296
9633
9976
10325
10680
11041
11408
11781
12160
12545
12936
13333
13736
14145
14560
14981
15408
15841
16280
16725
17176
17633
18096
18565
19040
19521
20008
20501
21000
21505
22016
22533
23056
23585
24120
24661
25208
25761
26320
26885
27456
28033
28616
29205
29800