Prime p₀= 2531618629738308853 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 10 54 44 6 16 8 112 80 30 34 30 80 112 8 16 6 44 54 10 (?)
a_n: 0 10 64 108 114 130 138 250 330 360 394 424 504 616 624 640 646 690 744 754
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: 754
Found by: raddoc
db: batch=82, k=20, 10 54 44 6 16 8 112 80 30 34

STPT(12)	2531617605449416049	0 2 12 14 60 62 150 152 198 200 210 212	-1024288892804
SPT(16)	2531617623744803179	0 10 24 60 82 88 94 112 120 138 144 150 172 208 222 232	-1005993505674
SPT(16)	2531618243904243113	0 6 20 60 98 146 168 170 174 176 198 246 284 324 338 344	-385834065740
TPT(14)	2531618323744593857	0 2 12 14 72 74 90 92 114 116 132 134 144 146	-305993714996
TPT(14)	2531618361472289699	0 2 30 32 78 80 150 152 162 164 192 194 198 200	-268266019154
SPT(18)	2531618576185370389	0 12 22 72 142 154 168 202 204 328 330 364 378 390 460 510 520 532	-53552938464
STPT(10)	2531619033470488859	0 2 42 44 60 62 78 80 120 122	403732180006
SPT(16)	2531619173657803469	0 30 42 74 108 114 128 132 140 144 158 164 198 230 242 272	543919494616
STPT(10)	2531619183790786559	0 2 42 44 120 122 198 200 240 242	554052477706
SPT(16)	2531619418661159843	0 20 38 80 84 98 104 126 128 150 156 170 174 216 234 254	788922850990
SPT(16)	2531619645817731173	0 14 24 26 50 56 194 210 260 276 414 420 444 446 456 470	1016079422320