Prime p₀= 2221217458515604447 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 10 2 52 6 20 24 6 76 6 24 20 6 52 2 10 (?)
a_n: 0 10 12 64 70 90 114 120 196 202 226 246 252 304 306 316
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: 316
Found by: Penguin
db: batch=81, k=16, 10 2 52 6 20 24 6 76

SPT(16)	2221216846354414369	0 58 60 84 88 90 118 138 214 234 262 264 268 292 294 352	-612161190078
SPT(16)	2221216929446647921	0 18 28 40 52 118 132 136 162 166 180 246 258 270 280 298	-529068956526
SPT(16)	2221216956017508079	0 4 64 102 120 154 168 192 250 274 288 322 340 378 438 442	-502498096368
SPT(16)	2221216957415090009	0 12 48 50 72 92 102 128 144 170 180 200 222 224 260 272	-501100514438
STPT(10)	2221217272892765471	0 2 30 32 78 80 126 128 156 158	-185622838976
STPT(10)	2221217317645016027	0 2 30 32 42 44 54 56 84 86	-140870588420
STPT(10)	2221217557075776167	0 2 30 32 42 44 54 56 84 86	98560171720
SPT(16)	2221217977408337837	0 20 44 132 186 296 314 336 380 402 420 530 584 672 696 716	518892733390
SPT(16)	2221218189299760227	0 24 26 30 42 44 56 66 110 120 132 134 146 150 152 176	730784155780
SPT(16)	2221218234921362753	0 14 24 90 150 194 200 234 266 300 306 350 410 476 486 500	776405758306
TPT(14)	2221218439725324407	0 2 42 44 60 62 84 86 144 146 264 266 300 302	981209719960