Prime p₀= 1121798545706800571 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 38 18 46 18 2 58 26 22 32 22 26 58 2 18 46 18 38 (?)
a_n: 0 38 56 102 120 122 180 206 228 260 282 308 366 368 386 432 450 488
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 488
Found by: schoussi
db: batch=76, k=18, 38 18 46 18 2 58 26 22 32

SPT(16)	1121796794736242719	0 30 34 54 78 94 100 108 124 132 138 154 178 198 202 232	-1750970557852
STPT(10)	1121796884816684801	0 2 6 8 48 50 90 92 96 98	-1660890115770
SPT(16)	1121797391324473481	0 48 78 92 98 102 176 182 276 282 356 360 366 380 410 458	-1154382327090
SPT(16)	1121797651010931329	0 2 32 44 78 84 114 180 182 248 278 284 318 330 360 362	-894695869242
SPT(16)	1121797865450371541	0 12 26 50 78 80 102 138 230 266 288 290 318 342 356 368	-680256429030
SPT(16)	1121798373555899087	0 24 26 60 66 72 86 90 206 210 224 230 236 270 272 296	-172150901484
STPT(10)	1121798805196993529	0 2 48 50 90 92 132 134 180 182	259490192958
STPT(10)	1121798812315855517	0 2 30 32 42 44 54 56 84 86	266609054946
SPT(16)	1121798901761141441	0 6 8 12 80 90 132 188 210 266 308 318 386 390 392 398	356054340870
SPT(16)	1121799119031942101	0 2 6 18 20 60 72 90 98 116 128 168 170 182 186 188	573325141530
SPT(20)	1121799505256226397	0 24 46 54 96 126 142 154 160 184 252 276 282 294 310 340 382 390 412 436	959549425826