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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.

A171669 Pell numbers sandwiched between two numbers having same number of divisors.

Table of values

n a(n)
1 12
2 5741
3 2744210
4 15994428
5 21300003689580
6 723573111879672
7 1111984844349868137938112
8 293199986221627877463941823267862
9 9960168529794442859224531878561050
10 27749033099085295754434173207717704165
11 66992092050551637663438906713182313772

List of values

[12, 5741, 2744210, 15994428, 21300003689580, 723573111879672, 1111984844349868137938112, 293199986221627877463941823267862, 9960168529794442859224531878561050, 27749033099085295754434173207717704165, 66992092050551637663438906713182313772]

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

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