Prime p₀= 2741222909138383207 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 82 44 30 28 66 6 6 24 74 24 6 6 66 28 30 44 82 (?)
a_n: 0 82 126 156 184 250 256 262 286 360 384 390 396 462 490 520 564 646
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: 646
Found by: JayPi
db: batch=82, k=18, 82 44 30 28 66 6 6 24 74

SPT(16)	2741221306702859921	0 12 30 42 56 62 68 90 128 150 156 162 176 188 206 218	-1602435523286
SPT(16)	2741221379473402607	0 26 62 66 110 182 210 222 260 272 300 372 416 420 456 482	-1529664980600
SPT(16)	2741221732729452743	0 14 38 78 84 110 128 138 266 276 294 320 326 366 390 404	-1176408930464
TPT(14)	2741221810073614121	0 2 48 50 78 80 210 212 216 218 270 272 288 290	-1099064769086
SPT(16)	2741222549684363539	0 58 60 88 120 124 138 160 168 190 204 208 240 268 270 328	-359454019668
STPT(10)	2741222709225533129	0 2 18 20 60 62 102 104 120 122	-199912850078
SPT(20)	2741222909153837347	0 30 46 70 120 144 150 184 210 214 246 250 276 310 316 340 390 414 430 460	15454140
SPT(16)	2741223334261153697	0 20 30 54 72 104 134 204 230 300 330 362 380 404 414 434	425122770490
SPT(16)	2741223472500470501	0 48 92 96 102 110 126 140 228 242 258 266 272 276 320 368	563362087294
SPT(16)	2741223706832143441	0 6 46 52 58 88 100 130 198 228 240 270 276 282 322 328	797693760234
SPT(16)	2741224608204955277	0 44 54 96 104 122 192 210 236 254 324 342 350 392 402 446	1699066572070