Prime p₀= 203421272625585451 starts a Symmetric tuple of 14 consecutive primes (SPT).
d_n: 0 12 4 50 34 20 6 10 6 20 34 50 4 12 (?)
a_n: 0 12 16 66 100 120 126 136 142 162 196 246 250 262
All 14 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 262
Found by: Ralfy
db: batch=69, k=14, 12 4 50 34 20 6 10

SPT(14)	203421222068953727	0 12 14 44 54 66 146 300 380 392 402 432 434 446	-50556631724
SPT(14)	203421249114603229	0 22 24 34 42 52 94 138 180 190 198 208 210 232	-23510982222
SPT(14)	203421256755028693	0 6 16 34 36 58 64 90 96 118 120 138 148 154	-15870556758
SPT(16)	203421259151840417	0 24 30 36 44 80 86 90 200 204 210 246 254 260 266 290	-13473745034
SPT(14)	203421260722720891	0 48 112 168 208 222 250 258 286 300 340 396 460 508	-11902864560
SPT(16)	203421270533778569	0 12 20 24 62 74 104 122 210 228 258 270 308 312 320 332	-2091806882
SPT(14)	203421278524410491	0 2 18 20 32 62 90 110 138 168 180 182 198 200	5898825040
SPT(14)	203421291187366711	0 70 132 162 166 238 258 370 390 462 466 496 558 628	18561781260
SPT(14)	203421293262594257	0 14 54 90 92 96 110 126 140 144 146 182 222 236	20637008806
SPT(16)	203421294537888811	0 10 40 72 108 112 118 138 172 192 198 202 238 270 300 310	21912303360
SPT(20)	203421299109905897	0 44 116 174 182 186 210 230 254 272 294 312 336 356 380 384 392 450 522 566	26484320446