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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.

A376684 Antidiagonal-sums of the absolute value of the array A376682(n,k) = n-th term of the k-th differences of the noncomposite numbers (A008578).

Table of values

n a(n)
0 1
1 3
2 4
3 9
4 12
5 27
6 50
7 109
8 224
9 471
10 942
11 1773
12 3118
13 4957
14 7038
15 9373
16 16256
17 55461
18 150622
19 346763
20 718972
21 1377101
22 2462220
23 4114987
24 6387718
25 9112455
26 12051830
27 17160117
28 40946860
29 134463917
30 349105370
31 800713921
32 1684145408
33 3297536923
34 6040907554

List of values

[1, 3, 4, 9, 12, 27, 50, 109, 224, 471, 942, 1773, 3118, 4957, 7038, 9373, 16256, 55461, 150622, 346763, 718972, 1377101, 2462220, 4114987, 6387718, 9112455, 12051830, 17160117, 40946860, 134463917, 349105370, 800713921, 1684145408, 3297536923, 6040907554]

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

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