Prime p₀= 1089299093662783733 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 20 16 8 54 6 70 24 20 28 20 24 70 6 54 8 16 20 (?)
a_n: 0 20 36 44 98 104 174 198 218 246 266 290 360 366 420 428 444 464
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: 464
Found by: ginga
db: batch=76, k=18, 20 16 8 54 6 70 24 20 28

SPT(16)	1089297681234539573	0 26 30 96 98 114 128 140 144 156 170 186 188 254 258 284	-1412428244160
SPT(16)	1089297772419455227	0 4 6 54 70 82 90 102 124 136 144 156 172 220 222 226	-1321243328506
SPT(16)	1089297981534924517	0 4 12 42 46 76 96 124 132 160 180 210 214 244 252 256	-1112127859216
TPT(14)	1089298188149137247	0 2 54 56 114 116 162 164 240 242 264 266 294 296	-905513646486
STPT(10)	1089298322612456027	0 2 30 32 120 122 210 212 240 242	-771050327706
SPT(16)	1089298990806326051	0 26 38 42 48 50 92 96 332 336 378 380 386 390 402 428	-102856457682
STPT(10)	1089299141813365079	0 2 42 44 60 62 78 80 120 122	48150581346
STPT(10)	1089299212127880539	0 2 30 32 60 62 90 92 120 122	118465096806
SPT(16)	1089299529384798551	0 8 36 56 66 78 120 138 140 158 200 212 222 242 270 278	435722014818
STPT(10)	1089299872927729427	0 2 30 32 42 44 54 56 84 86	779264945694
TPT(14)	1089300028048720097	0 2 30 32 42 44 120 122 150 152 162 164 210 212	934385936364