Prime p₀= 2577912502926365849 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 12 26 6 10 86 4 24 12 62 12 24 4 86 10 6 26 12 (?)
a_n: 0 12 38 44 54 140 144 168 180 242 254 278 282 368 378 384 410 422
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: 422
Found by: JayPi
db: batch=82, k=18, 12 26 6 10 86 4 24 12 62

SPT(16)	2577911251940737183	0 6 16 34 48 58 76 100 174 198 216 226 240 258 268 274	-1250985628666
SPT(16)	2577911734146532541	0 8 32 42 50 80 90 108 140 158 168 198 206 216 240 248	-768779833308
SPT(16)	2577911917050660769	0 10 12 64 132 220 222 250 384 412 414 502 570 622 624 634	-585875705080
STPT(10)	2577911965300516847	0 2 30 32 60 62 90 92 120 122	-537625849002
SPT(13)	2577912255621261301	0 42 66 96 120 162 186 210 252 276 306 330 372	-247305104548
SPT(16)	2577912456618765523	0 4 6 10 96 130 136 144 196 204 210 244 330 334 336 340	-46307600326
STPT(10)	2577912614465207231	0 2 36 38 78 80 120 122 156 158	111538841382
SPT(16)	2577912666241318249	0 28 30 72 82 90 100 172 198 270 280 288 298 340 342 370	163314952400
SPT(16)	2577912971183335837	0 10 22 34 52 64 84 154 240 310 330 342 360 372 384 394	468256969988
SPT(16)	2577913075237257977	0 36 42 66 84 116 134 204 212 282 300 332 350 374 380 416	572310892128
STPT(10)	2577913202145928187	0 2 90 92 102 104 114 116 204 206	699219562338