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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.

A377048 Antidiagonal-sums of the absolute value of the array A377046(n,k) = n-th term of k-th differences of nonsquarefree numbers (A013929).

Table of values

n a(n)
1 4
2 12
3 13
4 22
5 28
6 31
7 39
8 64
9 85
10 132
11 395
12 1103
13 2650
14 5868
15 12297
16 24694
17 47740
18 88731
19 157744
20 265744
21 418463
22 605929
23 805692
24 1104513
25 2396645
26 8213998
27 21761334
28 50923517
29 110270883
30 225997492
31 444193562
32 844498084
33 1561942458
34 2819780451
35 4973173841

List of values

[4, 12, 13, 22, 28, 31, 39, 64, 85, 132, 395, 1103, 2650, 5868, 12297, 24694, 47740, 88731, 157744, 265744, 418463, 605929, 805692, 1104513, 2396645, 8213998, 21761334, 50923517, 110270883, 225997492, 444193562, 844498084, 1561942458, 2819780451, 4973173841]

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

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