A105481 - cp's OEIS frontend

A105481 Number of partitions of {1...n} containing 4 pairs of consecutive integers, where each pair is counted within a block and a string of more than 2 consecutive integers are counted two at a time.

n	a(n)
5	1
6	5
7	30
8	175
9	1050
10	6552
11	42630
12	289410
13	2049300
14	15120105
15	116090975
16	926248050
17	7668746540
18	65793760060
19	584151925320
20	5360347320420
21	50776288702215
22	495946245776940
23	4989391837053085
24	51648932225779735
25	549620905409062872

[1, 5, 30, 175, 1050, 6552, 42630, 289410, 2049300, 15120105, 116090975, 926248050, 7668746540, 65793760060, 584151925320, 5360347320420, 50776288702215, 495946245776940, 4989391837053085, 51648932225779735, 549620905409062872]

cp's OEIS Frontend

A105481 Number of partitions of {1...n} containing 4 pairs of consecutive integers, where each pair is counted within a block and a string of more than 2 consecutive integers are counted two at a time.

Table of values

List of values