Prime p₀= 999230334097778593 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 4 12 8 22 24 20 4 14 10 8 10 14 4 20 24 22 8 12 4 (?)
a_n: 0 4 16 24 46 70 90 94 108 118 126 136 150 154 174 198 220 228 240 244
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 244
Found by: [SETI.USA]Tank_Master
db: batch=76, k=20, 4 12 8 22 24 20 4 14 10 8

STPT(10)	999228340299936959	0 2 18 20 60 62 102 104 120 122	-1993797841634
STPT(10)	999229238079149549	0 2 42 44 90 92 138 140 180 182	-1096018629044
STPT(10)	999230024903644031	0 2 36 38 78 80 120 122 156 158	-309194134562
SPT(16)	999230054299930441	0 6 48 60 88 132 150 156 172 178 196 240 268 280 322 328	-279797848152
SPT(16)	999230226939286099	0 18 64 84 102 142 174 184 258 268 300 340 358 378 424 442	-107158492494
STPT(10)	999230272435798691	0 2 36 38 78 80 120 122 156 158	-61661979902
STPT(10)	999230470890493739	0 2 18 20 60 62 102 104 120 122	136792715146
SPT(16)	999230494160325281	0 2 12 38 78 110 128 140 180 192 210 242 282 308 318 320	160062546688
SPT(13)	999230602556927647	0 12 60 90 102 126 156 186 210 222 252 300 312	268459149054
SPT(16)	999230636077256533	0 16 40 46 60 90 100 178 216 294 304 334 348 354 378 394	301979477940
SPT(16)	999231100905443321	0 38 42 48 80 110 128 230 318 420 438 468 500 506 510 548	766807664728