Prime p₀= 2101580871841016723 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 44 6 84 12 24 6 22 6 26 6 22 6 24 12 84 6 44 (?)
a_n: 0 44 50 134 146 170 176 198 204 230 236 258 264 288 300 384 390 434
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: 434
Found by: Coleslaw
db: batch=80, k=18, 44 6 84 12 24 6 22 6 26

SPT(16)	2101579778428298291	0 50 60 90 96 116 120 198 200 278 282 302 308 338 348 398	-1093412718432
SPT(16)	2101579988091264437	0 74 80 102 122 152 162 180 206 224 234 264 284 306 312 386	-883749752286
SPT(16)	2101580028568181443	0 34 46 60 90 100 130 148 156 174 204 214 244 258 270 304	-843272835280
SPT(16)	2101580537435902249	0 24 30 34 72 100 112 132 160 180 192 220 258 262 268 292	-334405114474
STPT(10)	2101580594023374221	0 2 6 8 18 20 30 32 36 38	-277817642502
SPT(16)	2101580715020062153	0 28 64 100 118 138 148 168 196 216 226 246 264 300 336 364	-156820954570
SPT(16)	2101581022809183703	0 6 16 46 76 90 100 126 160 186 196 210 240 270 280 286	150968166980
SPT(16)	2101581079350706501	0 6 58 66 70 78 108 132 136 160 190 198 202 210 262 268	207509689778
SPT(18)	2101581176155516331	0 50 56 138 152 156 170 198 222 236 260 288 302 306 320 402 408 458	304314499608
SPT(16)	2101581230680619189	0 14 32 50 60 78 98 110 132 144 164 182 192 210 228 242	358839602466
SPT(16)	2101581266300404103	0 74 108 164 168 174 186 224 270 308 320 326 330 386 420 494	394459387380