Prime p₀= 1990484305475772101 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 30 36 6 78 48 14 4 50 76 50 4 14 48 78 6 36 30 (?)
a_n: 0 30 66 72 150 198 212 216 266 342 392 396 410 458 536 542 578 608
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: 608
Found by: Landjunge
db: batch=80, k=18, 30 36 6 78 48 14 4 50 76

SPT(16)	1990482253779541651	0 10 28 42 48 52 82 100 258 276 306 310 316 330 348 358	-2051696230450
TPT(14)	1990482585563619209	0 2 30 32 60 62 102 104 108 110 150 152 168 170	-1719912152892
TPT(14)	1990483524436237781	0 2 30 32 156 158 186 188 210 212 306 308 366 368	-781039534320
SPT(16)	1990483738365507559	0 10 30 70 88 108 144 154 174 184 220 240 258 298 318 328	-567110264542
STPT(10)	1990484105258476181	0 2 6 8 48 50 90 92 96 98	-200217295920
STPT(10)	1990484162680093037	0 2 60 62 72 74 84 86 144 146	-142795679064
TPT(14)	1990484335462696949	0 2 12 14 30 32 150 152 282 284 390 392 408 410	29986924848
SPT(16)	1990484953969954721	0 48 146 158 188 200 248 336 380 468 516 528 558 570 668 716	648494182620
STPT(10)	1990485100719921929	0 2 12 14 30 32 48 50 60 62	795244149828
STPT(10)	1990485169445958917	0 2 30 32 42 44 54 56 84 86	863970186816
STPT(10)	1990485207094513901	0 2 30 32 78 80 126 128 156 158	901618741800