Prime p₀= 2166304283982817021 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 18 48 42 42 6 12 12 6 42 42 48 18 (?)
a_n: 0 18 66 108 150 156 168 180 186 228 270 318 336
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 336
Found by: Penguin
db: batch=81, k=13, 18 48 42 42 6 12

SPT(16)	2166303137647382861	0 30 32 36 66 72 128 138 140 150 206 212 242 246 248 278	-1146335434160
SPT(16)	2166303465526597451	0 8 18 32 42 62 110 126 152 168 216 236 246 260 270 278	-818456219570
TPT(14)	2166303465957185279	0 2 18 20 30 32 132 134 228 230 240 242 258 260	-818025631742
SPT(16)	2166303819057569969	0 30 42 98 120 134 140 144 218 222 228 242 264 320 332 362	-464925247052
SPT(16)	2166303961277454679	0 4 18 64 70 84 150 184 204 238 304 318 324 370 384 388	-322705362342
SPT(16)	2166304227132296659	0 4 30 42 48 72 84 100 102 118 130 154 160 172 198 202	-56850520362
SPT(16)	2166304676273744821	0 16 22 42 72 96 100 112 150 162 166 190 220 240 246 262	392290927800
SPT(16)	2166304824199286987	0 32 42 54 116 152 186 194 222 230 264 300 362 374 384 416	540216469966
SPT(16)	2166305180467162327	0 10 52 54 94 102 120 126 190 196 214 222 262 264 306 316	896484345306
STPT(10)	2166305841607386509	0 2 18 20 30 32 42 44 60 62	1557624569488
STPT(10)	2166305943552703829	0 2 30 32 60 62 90 92 120 122	1659569886808