A372349 - cp's OEIS frontend

A372349 a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * abs(Stirling1(n, k)) * x^k.

n	a(n)
0	1
1	1
2	2
3	6
4	28
5	190
6	1730
7	20068
8	287406
9	4971884
10	102082882
11	2450448780
12	67879395878
13	2145912460492
14	76704301481034
15	3075725307199340
16	137422311677357710
17	6800630226338490492
18	370741889753741467970
19	22155195508036869880684
20	1444764915198178824091590

[1, 1, 2, 6, 28, 190, 1730, 20068, 287406, 4971884, 102082882, 2450448780, 67879395878, 2145912460492, 76704301481034, 3075725307199340, 137422311677357710, 6800630226338490492, 370741889753741467970, 22155195508036869880684, 1444764915198178824091590]

cp's OEIS Frontend

A372349 a(n) = Sum_{j=0..n} p(n - j, j) where p(n, x) = Sum_{k=0..n} k! * abs(Stirling1(n, k)) * x^k.

Table of values

List of values