Prime p₀= 2122452755250825197 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 4 44 6 64 12 30 18 32 18 30 12 64 6 44 4 2 (?)
a_n: 0 2 6 50 56 120 132 162 180 212 230 260 272 336 342 386 390 392
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: 392
Found by: Landjunge
db: batch=80, k=18, 2 4 44 6 64 12 30 18 32

SPT(16)	2122451874369521657	0 50 92 120 134 152 182 200 204 222 252 270 284 312 354 404	-880881303540
STPT(10)	2122451962796522039	0 2 48 50 90 92 132 134 180 182	-792454303158
TPT(14)	2122451981101793357	0 2 162 164 240 242 324 326 330 332 342 344 420 422	-774149031840
STPT(10)	2122452147639565127	0 2 12 14 42 44 72 74 84 86	-607611260070
SPT(16)	2122452406482811811	0 38 42 48 56 90 92 102 146 156 158 192 200 206 210 248	-348768013386
SPT(16)	2122452455600480219	0 2 14 42 60 72 84 102 110 128 140 152 170 198 210 212	-299650344978
SPT(16)	2122452821536947199	0 28 40 42 48 60 70 84 88 102 112 124 130 132 144 172	66286122002
SPT(16)	2122453614968881487	0 14 54 56 60 74 144 186 194 236 306 320 324 326 366 380	859718056290
STPT(10)	2122454027307644207	0 2 60 62 72 74 84 86 144 146	1272056819010
STPT(10)	2122454157064194389	0 2 42 44 60 62 78 80 120 122	1401813369192
STPT(10)	2122454309268632147	0 2 54 56 72 74 90 92 144 146	1554017806950