Prime p₀= 283415477067204983 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 26 18 76 54 2 28 6 8 28 32 28 8 6 28 2 54 76 18 26 (?)
a_n: 0 26 44 120 174 176 204 210 218 246 278 306 314 320 348 350 404 480 498 524
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: 524
derived by truncating larger tuple
Found by: [AF>Amis des Lapins] Ceclo
db: batch=69, k=20, 26 18 76 54 2 28 6 8 28 32

TPT(12)	283415416819581251	0 2 6 8 18 20 60 62 78 80 126 128	-60247623732
SPT(14)	283415424129695159	0 2 12 42 80 92 120 200 228 240 278 308 318 320	-52937509824
SPT(14)	283415453214982117	0 30 40 106 130 156 204 256 304 330 354 420 430 460	-23852222866
SPT(14)	283415461141752811	0 22 36 40 76 148 156 172 180 252 288 292 306 328	-15925452172
SPT(14)	283415463226711867	0 6 30 46 90 126 142 174 190 226 270 286 310 316	-13840493116
SPT(22)	283415477067204973	0 10 36 54 130 184 186 214 220 228 256 288 316 324 330 358 360 414 490 508 534 544	-10
TPT(12)	283415514510473831	0 2 78 80 90 92 180 182 210 212 246 248	37443268848
SPT(14)	283415515800386689	0 10 12 48 52 70 90 220 240 258 262 298 300 310	38733181706
SPT(14)	283415526691099009	0 18 54 84 88 120 130 138 148 180 184 214 250 268	49623894026
SPT(14)	283415526710921069	0 84 90 92 108 152 218 264 330 374 390 392 398 482	49643716086
TPT(12)	283415531828404361	0 2 36 38 66 68 78 80 126 128 156 158	54761199378
SPT(14)	283415559633397879	0 4 30 42 64 70 72 100 102 108 130 142 168 172	82566192896