Prime p₀= 1396891292204512123 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 6 18 10 20 34 2 6 64 6 92 6 64 6 2 34 20 10 18 6 (?)
a_n: 0 6 24 34 54 88 90 96 160 166 258 264 328 334 336 370 390 400 418 424
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: 424
Found by: Steve Dodd
db: batch=77, k=20, 6 18 10 20 34 2 6 64 6 92

STPT(10)	1396890170851009589	0 2 18 20 30 32 42 44 60 62	-1121353502534
SPT(16)	1396890522674957071	0 40 58 72 88 100 108 130 150 172 180 192 208 222 240 280	-769529555052
SPT(16)	1396890782240792273	0 8 14 66 114 140 200 218 276 294 354 380 428 480 486 494	-509963719850
SPT(16)	1396890820419496861	0 40 166 208 268 280 288 316 342 370 378 390 450 492 618 658	-471785015262
SPT(16)	1396890932960537957	0 56 90 186 194 230 252 260 276 284 306 342 350 446 480 536	-359243974166
SPT(16)	1396891263000128047	0 6 12 52 54 70 162 192 274 304 396 412 414 454 460 466	-29204384076
SPT(18)	1396891351950317087	0 14 36 56 104 134 140 144 156 314 326 330 336 366 414 434 456 470	59745804964
TPT(14)	1396891664057366339	0 2 30 32 102 104 168 170 198 200 282 284 330 332	371852854216
SPT(16)	1396891827127303207	0 12 42 84 100 106 136 154 192 210 240 246 262 304 334 346	534922791084
SPT(16)	1396892269047360203	0 30 56 84 98 150 210 216 308 314 374 426 440 468 494 524	976842848080
SPT(16)	1396892485239729581	0 6 32 42 48 68 120 138 140 158 210 230 236 246 272 278	1193035217458