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.

A068808 Triangular numbers with strictly increasing sum of digits.

Table of values

n a(n)
1 1
2 3
3 6
4 28
5 66
6 78
7 378
8 496
9 1596
10 5778
11 5995
12 8778
13 47895
14 58996
15 196878
16 468996
17 887778
18 1788886
19 4896885
20 5897895
21 13999986
22 15997996
23 38997696
24 88877778
25 179977878
26 189978778
27 398988876
28 686999778
29 1699998895
30 5779898886
31 9876799878
32 38689969878
33 39689699896
34 67898888778
35 89996788896
36 299789989975

List of values

[1, 3, 6, 28, 66, 78, 378, 496, 1596, 5778, 5995, 8778, 47895, 58996, 196878, 468996, 887778, 1788886, 4896885, 5897895, 13999986, 15997996, 38997696, 88877778, 179977878, 189978778, 398988876, 686999778, 1699998895, 5779898886, 9876799878, 38689969878, 39689699896, 67898888778, 89996788896, 299789989975]

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

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