Prime p₀= 931494778338893683 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 76 42 36 12 12 2 28 38 42 88 42 38 28 2 12 12 36 42 76 (?)
a_n: 0 76 118 154 166 178 180 208 246 288 376 418 456 484 486 498 510 546 588 664
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 664
Found by: Theadalus
db: batch=76, k=20, 76 42 36 12 12 2 28 38 42 88

STPT(10)	931493990368150499	0 2 12 14 90 92 168 170 180 182	-787970743184
SPT(16)	931493995276260707	0 2 12 14 20 32 36 44 102 110 114 126 132 134 144 146	-783062632976
SPT(16)	931494245276840551	0 12 36 42 70 82 108 126 172 190 216 228 256 262 286 298	-533062053132
SPT(16)	931494447168272789	0 2 20 42 48 60 84 104 138 158 182 194 200 222 240 242	-331170620894
STPT(10)	931494462021858101	0 2 6 8 48 50 90 92 96 98	-316317035582
SPT(16)	931494610331023763	0 8 50 84 98 156 164 276 308 420 428 486 500 534 576 584	-168007869920
SPT(16)	931494893738386111	0 10 12 18 28 60 112 168 190 246 298 330 340 346 348 358	115399492428
SPT(16)	931495352177472983	0 38 96 110 150 164 224 234 260 270 330 344 384 398 456 494	573838579300
SPT(16)	931495634562937513	0 6 40 58 88 124 166 208 216 258 300 336 366 384 418 424	856224043830
SPT(16)	931495717939615513	0 10 34 48 54 66 76 126 208 258 268 280 286 300 324 334	939600721830
STPT(10)	931495910283347807	0 2 30 32 72 74 114 116 144 146	1131944454124