Prime p₀= 2162420892935043193 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 40 44 40 12 14 18 76 12 2 12 76 18 14 12 40 44 40 (?)
a_n: 0 40 84 124 136 150 168 244 256 258 270 346 364 378 390 430 474 514
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: 514
Found by: Landjunge
db: batch=81, k=18, 40 44 40 12 14 18 76 12 2

STPT(10)	2162419580406875747	0 2 12 14 42 44 72 74 84 86	-1312528167446
STPT(10)	2162420096082375551	0 2 36 38 78 80 120 122 156 158	-796852667642
SPT(16)	2162420217825909883	0 28 34 58 78 90 114 130 144 160 184 196 216 240 246 274	-675109133310
SPT(16)	2162420360682205457	0 30 32 44 72 84 92 116 210 234 242 254 282 294 296 326	-532252837736
SPT(16)	2162420429094763829	0 8 32 50 92 98 110 120 200 210 222 228 270 288 312 320	-463840279364
SPT(16)	2162420574206839913	0 74 120 126 128 134 158 200 264 306 330 336 338 344 390 464	-318728203280
STPT(10)	2162420898218610941	0 2 6 8 18 20 30 32 36 38	5283567748
STPT(10)	2162421369282223079	0 2 18 20 30 32 42 44 60 62	476347179886
SPT(16)	2162422065185660111	0 8 60 66 78 138 140 210 236 306 308 368 380 386 438 446	1172250616918
STPT(10)	2162422160976508061	0 2 36 38 78 80 120 122 156 158	1268041464868
SPT(16)	2162422988074039463	0 36 54 68 78 86 90 110 114 134 138 146 156 170 188 224	2095138996270