Prime p₀= 1243756685798669741 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 20 6 6 30 28 12 30 20 28 20 30 12 28 30 6 6 20 (?)
a_n: 0 20 26 32 62 90 102 132 152 180 200 230 242 270 300 306 312 332
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: 332
Found by: vinn@[CNT]
db: batch=77, k=18, 20 6 6 30 28 12 30 20 28

TPT(14)	1243755676104021209	0 2 42 44 48 50 108 110 120 122 132 134 162 164	-1009694648532
SPT(20)	1243756146457845869	0 2 80 84 90 122 132 182 200 210 314 324 342 392 402 434 440 444 522 524	-539340823872
STPT(10)	1243756256946542747	0 2 42 44 72 74 102 104 144 146	-428852126994
SPT(16)	1243756285950657667	0 12 102 112 144 154 156 166 300 310 312 322 354 364 454 466	-399848012074
SPT(16)	1243756647934488521	0 32 78 92 140 170 176 228 260 312 318 348 396 410 456 488	-37864181220
STPT(10)	1243756676676300131	0 2 36 38 78 80 120 122 156 158	-9122369610
STPT(12)	1243756796896080197	0 2 12 14 42 44 120 122 150 152 162 164	111097410456
SPT(16)	1243757355013868137	0 4 6 24 42 84 94 130 156 192 202 244 262 280 282 286	669215198396
SPT(16)	1243757692555125263	0 14 38 48 80 90 120 126 158 164 194 204 236 246 270 284	1006756455522
SPT(16)	1243757838789057209	0 2 14 30 38 74 122 128 144 150 198 234 242 258 270 272	1152990387468
STPT(10)	1243757877178728809	0 2 18 20 30 32 42 44 60 62	1191380059068