Prime p₀= 2221405736568722321 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 8 64 26 30 18 30 22 32 22 30 18 30 26 64 8 (?)
a_n: 0 8 72 98 128 146 176 198 230 252 282 300 330 356 420 428
All 16 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 428
Found by: JayPi
db: batch=81, k=16, 8 64 26 30 18 30 22 32

STPT(12)	2221404142776017987	0 2 30 32 60 62 72 74 102 104 132 134	-1593792704334
TPT(14)	2221404364450452089	0 2 30 32 60 62 72 74 108 110 198 200 228 230	-1372118270232
SPT(18)	2221405010017303459	0 60 90 114 138 178 180 250 264 298 312 382 384 424 448 472 502 562	-726551418862
SPT(16)	2221405534867066367	0 14 26 30 42 86 96 140 156 200 210 254 266 270 282 296	-201701655954
SPT(16)	2221405549715162189	0 32 42 144 224 260 374 390 392 408 522 558 638 740 750 782	-186853560132
STPT(10)	2221405650901456037	0 2 12 14 72 74 132 134 144 146	-85667266284
STPT(10)	2221406007013109471	0 2 36 38 78 80 120 122 156 158	270444387150
STPT(10)	2221406386746244637	0 2 30 32 60 62 90 92 120 122	650177522316
STPT(10)	2221406660122158371	0 2 30 32 78 80 126 128 156 158	923553436050
SPT(16)	2221406768603162681	0 2 36 50 120 158 162 182 186 206 210 248 318 332 366 368	1032034440360
SPT(16)	2221406937158901083	0 20 26 44 48 120 204 210 224 230 314 386 390 408 414 434	1200590178762