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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.

A320956 a(n) = A000110(n) * A000111(n). The exponential limit of sec + tan. Row sums of A373428.

Table of values

n a(n)
0 1
1 1
2 2
3 10
4 75
5 832
6 12383
7 238544
8 5733900
9 167822592
10 5859172975
11 240072637440
12 11388362495705
13 618357843791872
14 38057876106154882
15 2632817442236631040
16 203225803724876875315
17 17390464322078045896704
18 1640312648221489789841119
19 169667967895669459925991424

List of values

[1, 1, 2, 10, 75, 832, 12383, 238544, 5733900, 167822592, 5859172975, 240072637440, 11388362495705, 618357843791872, 38057876106154882, 2632817442236631040, 203225803724876875315, 17390464322078045896704, 1640312648221489789841119, 169667967895669459925991424]

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

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