Prime p₀= 1956608137458409121 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 56 30 16 6 32 10 6 14 28 14 6 10 32 6 16 30 56 (?)
a_n: 0 56 86 102 108 140 150 156 170 198 212 218 228 260 266 282 312 368
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: 368
Found by: [SG-2W]Kurzer
db: batch=80, k=18, 56 30 16 6 32 10 6 14 28

SPT(16)	1956606359174483089	0 10 22 54 64 90 100 108 124 132 142 168 178 210 222 232	-1778283926032
STPT(10)	1956606707388998837	0 2 30 32 42 44 54 56 84 86	-1430069410284
SPT(16)	1956607718531710591	0 22 42 72 78 96 102 130 198 226 232 250 256 286 306 328	-418926698530
STPT(10)	1956607730153688221	0 2 30 32 78 80 126 128 156 158	-407304720900
SPT(16)	1956607826893639651	0 18 40 76 132 156 162 172 366 376 382 406 462 498 520 538	-310564769470
SPT(16)	1956608064738936779	0 18 32 104 134 150 162 174 218 230 242 258 288 360 374 392	-72719472342
SPT(16)	1956608434365607331	0 8 26 36 56 78 92 96 122 126 140 162 182 192 210 218	296907198210
SPT(16)	1956608463104227591	0 28 42 58 60 148 178 180 280 282 312 400 402 418 432 460	325645818470
STPT(10)	1956608667525430517	0 2 30 32 42 44 54 56 84 86	530067021396
STPT(10)	1956608955013777109	0 2 42 44 90 92 138 140 180 182	817555367988
STPT(10)	1956609140666216129	0 2 42 44 60 62 78 80 120 122	1003207807008