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.

A167403 Number of decimal numbers having n or fewer digits and having the sum of their digits equal to n.

Table of values

n a(n)
1 1
2 3
3 10
4 35
5 126
6 462
7 1716
8 6435
9 24310
10 92368
11 352595
12 1351142
13 5194385
14 20024980
15 77384340
16 299671971
17 1162635441
18 4518099300
19 17583582225
20 68522664400
21 267350823015
22 1044243559263
23 4082760176300
24 15977236602150
25 62576817828876
26 245279492151021

List of values

[1, 3, 10, 35, 126, 462, 1716, 6435, 24310, 92368, 352595, 1351142, 5194385, 20024980, 77384340, 299671971, 1162635441, 4518099300, 17583582225, 68522664400, 267350823015, 1044243559263, 4082760176300, 15977236602150, 62576817828876, 245279492151021]

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

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