Prime p₀= 1611664615139011997 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 6 6 60 30 24 30 30 24 30 60 6 6 (?)
a_n: 0 6 12 72 102 126 156 186 210 240 300 306 312
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 312
Found by: xii5ku
db: batch=78, k=13, 6 6 60 30 24 30

SPT(16)	1611664196886421001	0 30 38 48 120 156 192 212 246 266 302 338 410 420 428 458	-418252590996
SPT(16)	1611664232742525001	0 10 42 60 66 126 166 186 196 216 256 316 322 340 372 382	-382396486996
SPT(16)	1611664359422437211	0 2 12 20 50 78 80 90 170 180 182 210 240 248 258 260	-255716574786
SPT(16)	1611664374017511329	0 8 18 62 68 80 90 110 132 152 162 174 180 224 234 242	-241121500668
TPT(14)	1611664479097042631	0 2 126 128 186 188 228 230 420 422 450 452 456 458	-136041969366
SPT(16)	1611664559617434757	0 10 36 42 106 144 166 186 190 210 232 270 334 340 366 376	-55521577240
SPT(16)	1611664672165127479	0 18 34 54 64 78 120 124 168 172 214 228 238 258 274 292	57026115482
STPT(10)	1611664813776491531	0 2 36 38 78 80 120 122 156 158	198637479534
SPT(16)	1611665011348253837	0 6 20 26 30 62 114 140 306 332 384 416 420 426 440 446	396209241840
SPT(16)	1611665017154202679	0 12 70 82 100 130 198 204 208 214 282 312 330 342 400 412	402015190682
STPT(10)	1611665507871835847	0 2 30 32 72 74 114 116 144 146	892732823850