Prime p₀= 1447255095113367083 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 18 50 6 34 26 16 50 28 6 26 6 28 50 16 26 34 6 50 18 (?)
a_n: 0 18 68 74 108 134 150 200 228 234 260 266 294 344 360 386 420 426 476 494
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: 494
Found by: suriv
db: batch=78, k=20, 18 50 6 34 26 16 50 28 6 26

SPT(16)	1447253622279902797	0 12 16 70 76 90 96 106 126 136 142 156 162 216 220 232	-1472833464286
SPT(16)	1447253699715714097	0 16 42 76 96 106 132 162 250 280 306 316 336 370 396 412	-1395397652986
SPT(16)	1447253850634504259	0 18 42 68 72 98 188 204 278 294 384 410 414 440 464 482	-1244478862824
STPT(10)	1447254079280719649	0 2 42 44 60 62 78 80 120 122	-1015832647434
STPT(10)	1447254224216601209	0 2 12 14 90 92 168 170 180 182	-870896765874
SPT(16)	1447254493131467539	0 10 22 72 100 102 112 142 150 180 190 192 220 270 282 292	-601981899544
SPT(16)	1447255141510649759	0 8 32 38 60 80 120 134 168 182 222 242 264 270 294 302	46397282676
SPT(16)	1447255557744804917	0 14 26 42 54 72 96 132 134 170 194 212 224 240 252 266	462631437834
SPT(16)	1447255744932256879	0 42 64 102 130 132 162 184 270 292 322 324 352 390 412 454	649818889796
STPT(10)	1447255822179355997	0 2 30 32 42 44 54 56 84 86	727065988914
SPT(16)	1447256028663949631	0 2 18 78 98 110 138 152 186 200 228 240 260 320 336 338	933550582548