Prime p₀= 3481288917728703061 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 60 18 10 68 22 32 10 96 14 16 14 96 10 32 22 68 10 18 60 (?)
a_n: 0 60 78 88 156 178 210 220 316 330 346 360 456 466 498 520 588 598 616 676
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: 676
Found by: eclipse99
db: batch=83, k=20, 60 18 10 68 22 32 10 96 14 16

TPT(14)	3481287131840572277	0 2 60 62 114 116 144 146 192 194 222 224 240 242	-1785888130784
STPT(10)	3481287184378205327	0 2 30 32 72 74 114 116 144 146	-1733350497734
STPT(10)	3481287270688041977	0 2 30 32 42 44 54 56 84 86	-1647040661084
TPT(14)	3481287932298510197	0 2 42 44 90 92 120 122 180 182 204 206 210 212	-985430192864
SPT(16)	3481288547088005761	0 28 30 46 132 136 196 258 340 402 462 466 552 568 570 598	-370640697300
STPT(10)	3481288671197176319	0 2 18 20 30 32 42 44 60 62	-246531526742
STPT(10)	3481289002819397681	0 2 6 8 18 20 30 32 36 38	85090694620
STPT(10)	3481289663441672837	0 2 60 62 72 74 84 86 144 146	745712969776
SPT(16)	3481289749867636471	0 72 78 102 112 150 160 172 216 228 238 276 286 310 316 388	832138933410
SPT(16)	3481290125798841793	0 6 10 28 34 94 108 120 154 166 180 240 246 264 268 274	1208070138732
SPT(16)	3481290429646882529	0 24 32 48 62 110 132 150 182 200 222 270 284 300 308 332	1511918179468