Prime p₀= 2016632786199891863 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 38 18 22 8 12 48 18 6 4 6 18 48 12 8 22 18 38 (?)
a_n: 0 38 56 78 86 98 146 164 170 174 180 198 246 258 266 288 306 344
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: 344
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 38 18 22 8 12 48 18 6 4

SPT(16)	2016631155278405671	0 10 40 48 66 82 132 150 238 256 306 322 340 348 378 388	-1630921486192
SPT(16)	2016631249134377047	0 22 40 54 60 82 100 132 364 396 414 436 442 456 474 496	-1537065514816
SPT(16)	2016631618459846379	0 8 18 32 60 68 98 122 138 162 192 200 228 242 252 260	-1167740045484
SPT(16)	2016631801066432843	0 34 54 96 138 144 166 184 210 228 250 256 298 340 360 394	-985133459020
SPT(16)	2016632316986221271	0 36 50 80 86 96 126 128 150 152 182 192 198 228 242 278	-469213670592
STPT(10)	2016632328410610899	0 2 18 20 30 32 42 44 60 62	-457789280964
SPT(16)	2016633011757866603	0 14 44 66 80 98 140 156 188 204 246 264 278 300 330 344	225557974740
STPT(10)	2016633057079158767	0 2 30 32 42 44 54 56 84 86	270879266904
SPT(16)	2016633204657571889	0 12 32 48 68 90 104 134 228 258 272 294 314 330 350 362	418457680026
SPT(16)	2016633405766888781	0 38 60 96 116 120 138 182 186 230 248 252 272 308 330 368	619566996918
SPT(16)	2016633618591859259	0 42 48 108 110 158 170 192 230 252 264 312 314 374 380 422	832391967396