Prime p₀= 3421748656197966929 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 42 8 70 12 30 50 16 6 6 62 6 6 16 50 30 12 70 8 42 (?)
a_n: 0 42 50 120 132 162 212 228 234 240 302 308 314 330 380 410 422 492 500 542
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: 542
Found by: [SG-FC] hl
db: batch=83, k=20, 42 8 70 12 30 50 16 6 6 62

TPT(14)	3421747578141954041	0 2 30 32 78 80 120 122 126 128 198 200 246 248	-1078056012888
STPT(10)	3421747692694267169	0 2 48 50 60 62 72 74 120 122	-963503699760
STPT(10)	3421747843085057609	0 2 12 14 30 32 48 50 60 62	-813112909320
SPT(16)	3421747895706597311	0 30 96 108 140 186 206 210 236 240 260 306 338 350 416 446	-760491369618
SPT(16)	3421748022707712209	0 2 18 72 92 102 150 200 210 260 308 318 338 392 408 410	-633490254720
STPT(12)	3421748261644627097	0 2 42 44 54 56 150 152 162 164 204 206	-394553339832
SPT(16)	3421748793190761751	0 6 22 42 48 120 180 196 222 238 298 370 376 396 412 418	136992794822
STPT(10)	3421748884113872339	0 2 18 20 30 32 42 44 60 62	227915905410
TPT(14)	3421749177949848017	0 2 42 44 54 56 60 62 72 74 150 152 180 182	521751881088
SPT(16)	3421749257394204839	0 18 32 44 72 78 104 230 282 408 434 440 468 480 494 512	601196237910
SPT(16)	3421749443022736459	0 12 22 30 54 78 138 142 210 214 274 298 322 330 340 352	786824769530