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.

A076454 Sum of numbers that can be written as t*n + u*(n+1) for nonnegative integers t,u in exactly one way.

Table of values

n a(n)
1 1
2 21
3 102
4 310
5 735
6 1491
7 2716
8 4572
9 7245
10 10945
11 15906
12 22386
13 30667
14 41055
15 53880
16 69496
17 88281
18 110637
19 136990
20 167790
21 203511
22 244651
23 291732
24 345300
25 405925
26 474201
27 550746
28 636202
29 731235
30 836535
31 952816
32 1080816
33 1221297
34 1375045
35 1542870
36 1725606
37 1924111

List of values

[1, 21, 102, 310, 735, 1491, 2716, 4572, 7245, 10945, 15906, 22386, 30667, 41055, 53880, 69496, 88281, 110637, 136990, 167790, 203511, 244651, 291732, 345300, 405925, 474201, 550746, 636202, 731235, 836535, 952816, 1080816, 1221297, 1375045, 1542870, 1725606, 1924111]