A090117 - cp's OEIS frontend

A090117 a(n) = x^2 = A090116(n)^2 is the least square that is "surrounded" by two closest primes, by prevprime(x^2) and nextprime(x^2) whose difference nextprime - prevprime = 2n.

n	a(n)
1	4
2	9
3	25
4	361
5	144
6	625
7	121
8	1936
9	529
10	900
11	3249
12	1681
13	2500
14	10404
15	5776
16	10816
17	10000
18	22201
19	30625
20	25281
21	121104
22	76176
23	93025
24	157609
25	212521
26	35721
27	119025
28	1121481
29	190969
30	672400
31	693889
32	1004004
33	259081
34	1646089
35	675684
36	1207801

[4, 9, 25, 361, 144, 625, 121, 1936, 529, 900, 3249, 1681, 2500, 10404, 5776, 10816, 10000, 22201, 30625, 25281, 121104, 76176, 93025, 157609, 212521, 35721, 119025, 1121481, 190969, 672400, 693889, 1004004, 259081, 1646089, 675684, 1207801]

cp's OEIS Frontend

A090117 a(n) = x^2 = A090116(n)^2 is the least square that is "surrounded" by two closest primes, by prevprime(x^2) and nextprime(x^2) whose difference nextprime - prevprime = 2n.

Table of values

List of values