Prime p₀= 3022906884803741191 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 78 22 42 14 16 36 2 16 26 16 2 36 16 14 42 22 78 (?)
a_n: 0 78 100 142 156 172 208 210 226 252 268 270 306 322 336 378 400 478
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 478
Found by: [SG]ATA-Rolf
db: batch=82, k=18, 78 22 42 14 16 36 2 16 26

SPT(13)	3022905670245619771	0 6 30 42 60 126 156 186 252 270 282 306 312	-1214558121420
STPT(10)	3022905722852608457	0 2 42 44 72 74 102 104 144 146	-1161951132734
SPT(16)	3022905756189675347	0 24 60 102 116 134 140 146 180 186 192 210 224 266 302 326	-1128614065844
SPT(16)	3022906062622829381	0 12 26 42 56 66 102 108 110 116 152 162 176 192 206 218	-822180911810
SPT(18)	3022906173973847593	0 18 76 126 148 154 190 238 256 288 306 354 390 396 418 468 526 544	-710829893598
SPT(16)	3022906511879110891	0 40 48 102 132 150 192 210 268 286 328 346 376 430 438 478	-372924630300
SPT(16)	3022907069428601909	0 38 50 80 182 192 224 240 302 318 350 360 462 492 504 542	184624860718
SPT(16)	3022908012986665381	0 6 30 40 90 130 132 162 166 196 198 238 288 298 322 328	1128182924190
SPT(18)	3022908206717341751	0 32 42 78 116 128 156 176 186 242 252 272 300 312 350 386 396 428	1321913600560
STPT(10)	3022908361778257439	0 2 48 50 90 92 132 134 180 182	1476974516248
SPT(18)	3022908506759469421	0 30 58 88 108 178 220 246 252 256 262 288 330 400 420 450 478 508	1621955728230