Prime p₀= 2149552511048374591 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 48 12 6 4 42 6 8 4 6 26 6 4 8 6 42 4 6 12 48 (?)
a_n: 0 48 60 66 70 112 118 126 130 136 162 168 172 180 186 228 232 238 250 298
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 298
Found by: JayPi
db: batch=81, k=20, 48 12 6 4 42 6 8 4 6 26

STPT(12)	2149551636072582941	0 2 78 80 180 182 276 278 378 380 456 458	-874975791650
STPT(10)	2149551913313714867	0 2 42 44 72 74 102 104 144 146	-597734659724
SPT(16)	2149551944507816521	0 30 72 78 102 106 126 148 270 292 312 316 340 346 388 418	-566540558070
STPT(10)	2149552302449841629	0 2 18 20 30 32 42 44 60 62	-208598532962
SPT(18)	2149552306291454741	0 20 42 48 138 150 182 210 216 242 248 276 308 320 410 416 438 458	-204756919850
SPT(18)	2149552424243643227	0 20 42 50 72 92 110 120 132 182 194 204 222 242 264 272 294 314	-86804731364
STPT(10)	2149552794359646857	0 2 30 32 42 44 54 56 84 86	283311272266
STPT(10)	2149552859956772507	0 2 30 32 42 44 54 56 84 86	348908397916
STPT(10)	2149552984150221827	0 2 60 62 72 74 84 86 144 146	473101847236
SPT(16)	2149553015400563827	0 42 70 82 90 160 172 174 202 204 216 286 294 306 334 376	504352189236
SPT(16)	2149553270118366907	0 6 72 124 156 174 204 244 252 292 322 340 372 424 490 496	759069992316