Prime p₀= 2194703900169063919 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 42 12 6 10 12 56 4 8 22 8 4 56 12 10 6 12 42 (?)
a_n: 0 42 54 60 70 82 138 142 150 172 180 184 240 252 262 268 280 322
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: 322
Found by: JayPi
db: batch=81, k=18, 42 12 6 10 12 56 4 8 22

SPT(16)	2194701538080591707	0 6 14 62 72 74 96 144 182 230 252 254 264 312 320 326	-2362088472212
STPT(10)	2194702364489485691	0 2 36 38 78 80 120 122 156 158	-1535679578228
SPT(16)	2194702497120190823	0 8 30 90 96 156 188 216 260 288 320 380 386 446 468 476	-1403048873096
SPT(16)	2194702679258208631	0 108 130 142 162 172 196 208 210 222 246 256 276 288 310 418	-1220910855288
SPT(16)	2194702852652859019	0 4 30 52 58 60 72 100 162 190 202 204 210 232 258 262	-1047516204900
STPT(10)	2194703509777939619	0 2 42 44 90 92 138 140 180 182	-390391124300
SPT(18)	2194704004306686809	0 2 44 54 72 114 122 140 170 222 252 270 278 320 338 348 390 392	104137622890
TPT(14)	2194704018875010107	0 2 54 56 180 182 330 332 342 344 390 392 414 416	118705946188
SPT(16)	2194704186518352997	0 24 34 42 52 54 64 90 196 222 232 234 244 252 262 286	286349289078
SPT(16)	2194704273429152753	0 6 14 36 48 90 98 116 438 456 464 506 518 540 548 554	373260088834
STPT(10)	2194704329226647177	0 2 30 32 60 62 90 92 120 122	429057583258