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.

A146086 Number of n-digit numbers with each digit odd where the digits 1 and 3 occur an even number of times.

Table of values

n a(n)
1 3
2 11
3 45
4 197
5 903
6 4271
7 20625
8 100937
9 498123
10 2470931
11 12295605
12 61300877
13 305972943
14 1528270391
15 7636568985
16 38168496017
17 190799433363
18 953868026651
19 4768952712765
20 23843601302357
21 119214519727383
22 596062138283711
23 2980279310358945
24 14901302408615897

List of values

[3, 11, 45, 197, 903, 4271, 20625, 100937, 498123, 2470931, 12295605, 61300877, 305972943, 1528270391, 7636568985, 38168496017, 190799433363, 953868026651, 4768952712765, 23843601302357, 119214519727383, 596062138283711, 2980279310358945, 14901302408615897]

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

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