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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.

A321784 Triangle T(n, k) read by rows, n > 0 and 0 < k <= 3^(n-1): T(n, k) = sqrt(A321769(n, k) + A321770(n, k)).

Table of values

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

List of values

[3, 5, 7, 5, 7, 11, 9, 13, 17, 11, 11, 13, 7, 9, 15, 13, 21, 27, 17, 19, 23, 13, 19, 29, 23, 31, 41, 27, 25, 29, 15, 17, 25, 19, 23, 31, 21, 17, 19, 9, 11, 19, 17, 29, 37, 23, 27, 33, 19, 31, 47, 37, 49, 65, 43, 39, 45, 23, 29, 43, 33, 41, 55, 37, 31, 35, 17]

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

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