A320103 - cp's OEIS frontend

A320103 Let f(1) = 1 + i (where i denotes the imaginary unit) and for n > 0, f(n+1) is the Gaussian prime in the first quadrant (with positive real part and nonnegative imaginary part) with least modulus that divides 1 + Product_{k=1..n} f(k) (in case of a tie minimize the imaginary part); a(n) is the real part of f(n).

n	a(n)
1	1
2	2
3	2
4	3
5	27
6	2
7	1
8	19953
9	1
10	3
11	4
12	5
13	1
14	100543
15	4
16	5
17	1375
18	6
19	67
20	100129349439
21	35
22	22
23	7200537
24	11
25	90
26	733
27	1653333714972695690441280142887575811965481459539542336

[1, 2, 2, 3, 27, 2, 1, 19953, 1, 3, 4, 5, 1, 100543, 4, 5, 1375, 6, 67, 100129349439, 35, 22, 7200537, 11, 90, 733, 1653333714972695690441280142887575811965481459539542336]

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