cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A023850 Sum of exponents in prime-power factorization of binomial(5n, 2n+1).

Table of values

n a(n)
1 2
2 5
3 5
4 7
5 9
6 10
7 11
8 14
9 13
10 14
11 14
12 15
13 17
14 18
15 19
16 20
17 19
18 21
19 18
20 25
21 26
22 21
23 24
24 26
25 25
26 30
27 28
28 28
29 31
30 32
31 31
32 32
33 32
34 32
35 33
36 36
37 34
38 36
39 38
40 37
41 37
42 39
43 33
44 38
45 40
46 37
47 39
48 41
49 40
50 43
51 43
52 46
53 49
54 47
55 47
56 50
57 46
58 50
59 47
60 52
61 52
62 52
63 52
64 51
65 53
66 53
67 48
68 53
69 57
70 53
71 57
72 58
73 56
74 59
75 58
76 60

List of values

[2, 5, 5, 7, 9, 10, 11, 14, 13, 14, 14, 15, 17, 18, 19, 20, 19, 21, 18, 25, 26, 21, 24, 26, 25, 30, 28, 28, 31, 32, 31, 32, 32, 32, 33, 36, 34, 36, 38, 37, 37, 39, 33, 38, 40, 37, 39, 41, 40, 43, 43, 46, 49, 47, 47, 50, 46, 50, 47, 52, 52, 52, 52, 51, 53, 53, 48, 53, 57, 53, 57, 58, 56, 59, 58, 60]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.