Prime p₀= 3400974912221577763 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 4 26 18 18 4 6 24 18 12 44 12 18 24 6 4 18 18 26 4 (?)
a_n: 0 4 30 48 66 70 76 100 118 130 174 186 204 228 234 238 256 274 300 304
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: 304
derived by truncating larger tuple
Found by: [SG-FC] hl
db: batch=83, k=20, 4 26 18 18 4 6 24 18 12 44

STPT(10)	3400973609105962781	0 2 66 68 108 110 150 152 216 218	-1303115614982
SPT(16)	3400974058369353997	0 4 6 40 42 130 136 160 276 300 306 394 396 430 432 436	-853852223766
STPT(10)	3400974131374089041	0 2 36 38 78 80 120 122 156 158	-780847488722
SPT(16)	3400974279192050159	0 62 74 84 92 128 188 230 252 294 354 390 398 408 420 482	-633029527604
SPT(16)	3400974788044699277	0 26 32 74 90 96 102 132 194 224 230 236 252 294 300 326	-124176878486
SPT(22)	3400974912221577701	0 62 66 92 110 128 132 138 162 180 192 236 248 266 290 296 300 318 336 362 366 428	-62
SPT(16)	3400975257227950547	0 6 14 62 80 84 116 132 194 210 242 246 264 312 320 326	345006372784
STPT(10)	3400975316871761579	0 2 18 20 30 32 42 44 60 62	404650183816
TPT(14)	3400975435464992711	0 2 6 8 60 62 138 140 216 218 366 368 396 398	523243414948
STPT(10)	3400975882968650681	0 2 36 38 78 80 120 122 156 158	970747072918
SPT(16)	3400976665434168497	0 56 66 74 84 96 146 152 174 180 230 242 252 260 270 326	1753212590734
SPT(16)	3400976852848351781	0 20 60 90 96 102 116 138 140 162 176 182 188 218 258 278	1940626774018