Prime p₀= 2989753363074929081 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 36 32 4 14 12 54 40 20 64 20 40 54 12 14 4 32 36 (?)
a_n: 0 36 68 72 86 98 152 192 212 276 296 336 390 402 416 420 452 488
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: 488
Found by: raddoc
db: batch=82, k=18, 36 32 4 14 12 54 40 20 64

SPT(16)	2989752182454028297	0 42 60 66 76 82 132 186 196 250 300 306 316 322 340 382	-1180620900784
STPT(10)	2989752262742946521	0 2 6 8 18 20 30 32 36 38	-1100331982560
SPT(18)	2989752297329657459	0 32 42 54 68 78 84 98 110 132 144 158 164 174 188 200 210 242	-1065745271622
SPT(16)	2989752589696341347	0 2 36 120 156 230 240 300 302 362 372 446 482 566 600 602	-773378587734
SPT(16)	2989753101260738627	0 2 42 44 72 110 180 282 332 434 504 542 570 572 612 614	-261814190454
STPT(10)	2989753311462670901	0 2 36 38 78 80 120 122 156 158	-51612258180
SPT(16)	2989753399114367603	0 26 90 98 134 168 170 176 258 264 266 300 336 344 408 434	36039438522
SPT(16)	2989753755332087111	0 12 20 62 68 90 98 132 146 180 188 210 216 258 266 278	392257158030
SPT(13)	2989754076094461007	0 36 66 192 210 216 246 276 282 300 426 456 492	713019531926
SPT(16)	2989754440714827221	0 20 36 50 78 98 108 120 128 140 150 170 198 212 228 248	1077639898140
SPT(16)	2989754549798350687	0 42 70 90 96 112 156 174 202 220 264 280 286 306 334 376	1186723421606