Prime p₀= 2734948456606151923 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 4 14 30 28 30 90 14 6 22 6 14 90 30 28 30 14 4 (?)
a_n: 0 4 18 48 76 106 196 210 216 238 244 258 348 378 406 436 450 454
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: 454
Found by: [SG-2W]Kurzer
db: batch=82, k=18, 4 14 30 28 30 90 14 6 22

SPT(16)	2734946141302842683	0 6 38 84 86 90 116 126 128 138 164 168 170 216 248 254	-2315303309240
SPT(16)	2734946429796163861	0 18 22 40 78 160 180 196 222 238 258 340 378 396 400 418	-2026809988062
SPT(16)	2734946433737224717	0 6 52 96 114 142 154 160 216 222 234 262 280 324 370 376	-2022868927206
STPT(10)	2734947009395584757	0 2 54 56 72 74 90 92 144 146	-1447210567166
SPT(16)	2734947339608675329	0 10 12 34 42 54 90 120 124 154 190 202 210 232 234 244	-1116997476594
SPT(18)	2734948205759627659	0 42 54 90 124 154 172 340 372 382 414 582 600 630 664 700 712 754	-250846524264
STPT(10)	2734948848136300091	0 2 6 8 18 20 30 32 36 38	391530148168
SPT(20)	2734949027931299503	0 4 34 58 60 136 150 156 186 198 256 268 298 304 318 394 396 420 450 454	571325147580
TPT(14)	2734949129451075791	0 2 60 62 90 92 198 200 288 290 330 332 408 410	672844923868
STPT(10)	2734949346827607587	0 2 60 62 72 74 84 86 144 146	890221455664
STPT(10)	2734949804875921481	0 2 30 32 60 62 90 92 120 122	1348269769558