Prime p₀= 1468870433018204921 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 18 2 28 42 48 20 22 2 18 58 18 2 22 20 48 42 28 2 18 (?)
a_n: 0 18 20 48 90 138 158 180 182 200 258 276 278 300 320 368 410 438 440 458
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: 458
derived by truncating larger tuple
Found by: Theadalus
db: batch=78, k=20, 18 2 28 42 48 20 22 2 18 58

STPT(10)	1468869149695990541	0 2 36 38 78 80 120 122 156 158	-1283322214380
SPT(16)	1468869302009092031	0 20 42 48 68 80 110 116 132 138 168 180 200 206 228 248	-1131009112890
STPT(10)	1468869525792495551	0 2 6 8 48 50 90 92 96 98	-907225709370
STPT(10)	1468870196324707607	0 2 30 32 72 74 114 116 144 146	-236693497314
SPT(16)	1468870248006054317	0 14 32 74 90 102 140 176 210 246 284 296 312 354 372 386	-185012150604
SPT(22)	1468870433018204833	0 88 106 108 136 178 226 246 268 270 288 346 364 366 388 408 456 498 526 528 546 634	-88
SPT(16)	1468870496076453983	0 8 44 86 108 140 156 174 200 218 234 266 288 330 366 374	63058249062
TPT(14)	1468870835205388211	0 2 60 62 78 80 126 128 186 188 210 212 240 242	402187183290
STPT(10)	1468870964604959957	0 2 30 32 42 44 54 56 84 86	531586755036
STPT(10)	1468871452008681731	0 2 6 8 48 50 90 92 96 98	1018990476810
STPT(10)	1468871822040244649	0 2 18 20 30 32 42 44 60 62	1389022039728
STPT(10)	1468871863628063309	0 2 18 20 30 32 42 44 60 62	1430609858388