Prime p₀= 976604554129296467 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 20 10 56 24 6 54 24 22 8 22 24 54 6 24 56 10 20 (?)
a_n: 0 20 30 86 110 116 170 194 216 224 246 270 324 330 354 410 420 440
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: 440
Found by: [SG-2W]Kurzer
db: batch=76, k=18, 20 10 56 24 6 54 24 22 8

SPT(16)	976604074952689349	0 12 50 84 92 104 140 158 294 312 348 360 368 402 440 452	-479176607118
SPT(16)	976604193611362451	0 20 38 48 56 108 120 122 186 188 200 252 260 270 288 308	-360517934016
STPT(10)	976604268047924429	0 2 12 14 90 92 168 170 180 182	-286081372038
STPT(10)	976604323271639729	0 2 18 20 60 62 102 104 120 122	-230857656738
SPT(16)	976604379963510931	0 12 28 78 96 112 120 166 222 268 276 292 310 360 376 388	-174165785536
SPT(16)	976604472714512261	0 32 68 78 96 102 110 120 158 168 176 182 200 210 246 278	-81414784206
SPT(16)	976604727393573191	0 2 8 26 86 156 176 188 210 222 242 312 372 390 396 398	173264276724
SPT(16)	976604751275379209	0 20 32 44 74 78 110 128 144 162 194 198 228 240 252 272	197146082742
STPT(10)	976605087410055287	0 2 30 32 60 62 90 92 120 122	533280758820
TPT(14)	976605224286099761	0 2 36 38 78 80 90 92 138 140 150 152 168 170	670156803294
STPT(10)	976605275574428411	0 2 6 8 18 20 30 32 36 38	721445131944