Prime p₀= 1303056412958653921 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 52 14 6 66 4 14 6 4 30 26 30 4 6 14 4 66 6 14 52 (?)
a_n: 0 52 66 72 138 142 156 162 166 196 222 252 256 262 276 280 346 352 366 418
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: 418
derived by truncating larger tuple
Found by: HenkM
db: batch=77, k=20, 52 14 6 66 4 14 6 4 30 26

STPT(10)	1303055079538652327	0 2 30 32 42 44 54 56 84 86	-1333420001594
SPT(16)	1303055172047220967	0 6 16 22 60 90 100 144 172 216 226 256 294 300 310 316	-1240911432954
STPT(10)	1303055780210516699	0 2 12 14 90 92 168 170 180 182	-632748137222
SPT(18)	1303055890384672499	0 20 54 74 152 168 192 228 234 308 314 350 374 390 468 488 522 542	-522573981422
STPT(10)	1303056269150438321	0 2 36 38 78 80 120 122 156 158	-143808215600
SPT(22)	1303056412958653823	0 98 150 164 170 236 240 254 260 264 294 320 350 354 360 374 378 444 450 464 516 614	-98
TPT(14)	1303056454724322239	0 2 12 14 42 44 132 134 210 212 282 284 342 344	41765668318
SPT(16)	1303057094438110483	0 94 106 108 114 190 196 238 246 288 294 370 376 378 390 484	681479456562
STPT(10)	1303057516187722817	0 2 30 32 42 44 54 56 84 86	1103229068896
STPT(10)	1303057756484843501	0 2 6 8 18 20 30 32 36 38	1343526189580
SPT(16)	1303057859716781689	0 22 52 78 118 264 268 280 372 384 388 534 574 600 630 652	1446758127768
SPT(16)	1303057974370362787	0 40 66 76 82 96 132 150 166 184 220 234 240 250 276 316	1561411708866