Numbers

0
1
2
3
3	triangular number
4
4	centered triangular number	square number
5
5	centered square number
6
6	centered pentagonal number	triangular number
7
7	centered hexagonal number
8
8	centered heptagonal number
9
9	centered octagonal number	square number
10
10	centered triangular number	centered nonagonal number	triangular number
11
11	centered decagonal number
12
13
13	centered square number	star number
14
15
15	triangular number
16
16	centered pentagonal number	square number
17
18
19
19	centered triangular number	centered hexagonal number
20
21
21	triangular number
22
22	centered heptagonal number
23
24
25
25	centered square number	centered octagonal number	square number
26
27
28
28	centered nonagonal number	triangular number
29
30
31
31	centered triangular number	centered pentagonal number	centered decagonal number
32
33
34
35
36
36	triangular number	square number
37
37	centered hexagonal number	star number
38
39
40
41
41	centered square number
42
43
43	centered heptagonal number
44
45
45	triangular number
46
46	centered triangular number
47
48
49
49	centered octagonal number	square number
50
51
51	centered pentagonal number
52
53
54
55
55	centered nonagonal number	triangular number
56
57
58
59
60

Related subjects:
Centered decagonal number
Centered heptagonal number
Centered nonagonal number
Centered octagonal number
Centered pentagonal number
Centered polygonal number
Centered square number
Centered triangular number
Polygonal number
Square number
Star number
Triangular number