Prime p₀= 2164340734975438753 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 4 36 68 18 4 14 34 8 22 8 34 14 4 18 68 36 4 (?)
a_n: 0 4 40 108 126 130 144 178 186 208 216 250 264 268 286 354 390 394
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: 394
Found by: JayPi
db: batch=81, k=18, 4 36 68 18 4 14 34 8 22

STPT(10)	2164339086042529301	0 2 6 8 48 50 90 92 96 98	-1648932909452
SPT(16)	2164339286262512407	0 34 42 46 66 76 132 142 144 154 210 220 240 244 252 286	-1448712926346
STPT(10)	2164339471690133831	0 2 30 32 60 62 90 92 120 122	-1263285304922
TPT(14)	2164340094195809681	0 2 30 32 48 50 156 158 216 218 348 350 438 440	-640779629072
SPT(16)	2164340359238301529	0 42 70 82 84 88 112 124 138 150 174 178 180 192 220 262	-375737137224
STPT(10)	2164340565109714001	0 2 6 8 48 50 90 92 96 98	-169865724752
TPT(14)	2164340764495037459	0 2 42 44 48 50 60 62 90 92 198 200 240 242	29519598706
TPT(14)	2164341014406220499	0 2 78 80 120 122 168 170 192 194 300 302 378 380	279430781746
SPT(16)	2164341171705185443	0 6 40 78 88 166 190 208 216 234 258 336 346 384 418 424	436729746690
SPT(16)	2164341335859550483	0 10 30 54 58 84 94 100 168 174 184 210 214 238 258 268	600884111730
STPT(10)	2164341341172407399	0 2 30 32 60 62 90 92 120 122	606196968646