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.

A145561 Alternating row sums of triangle A049029 (S2(5)).

Table of values

n a(n)
1 1
2 4
3 31
4 359
5 5546
6 107249
7 2492701
8 67693534
9 2103854581
10 73651161959
11 2868077514776
12 122980857764819
13 5758029769553101
14 292305762924889804
15 15992593021331060611
16 938143525674896325299
17 58739433900424758545186
18 3910020681156059085488189

List of values

[1, 4, 31, 359, 5546, 107249, 2492701, 67693534, 2103854581, 73651161959, 2868077514776, 122980857764819, 5758029769553101, 292305762924889804, 15992593021331060611, 938143525674896325299, 58739433900424758545186, 3910020681156059085488189]

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

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