Prime p₀= 1631931172019690273 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 20 30 6 60 4 36 68 4 36 206 36 4 68 36 4 60 6 30 20 (?)
a_n: 0 20 50 56 116 120 156 224 228 264 470 506 510 578 614 618 678 684 714 734
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: 734
Found by: xii5ku
db: batch=78, k=20, 20 30 6 60 4 36 68 4 36 206

STPT(12)	1631930619450187739	0 2 42 44 60 62 72 74 90 92 132 134	-552569502534
SPT(16)	1631930819115103471	0 16 28 30 40 52 70 96 172 198 216 228 238 240 252 268	-352904586802
SPT(16)	1631930828807233237	0 34 40 114 180 202 240 252 274 286 324 346 412 486 492 526	-343212457036
SPT(16)	1631931089544598027	0 22 30 66 70 76 160 162 274 276 360 366 370 406 414 436	-82475092246
STPT(10)	1631931144510254849	0 2 18 20 30 32 42 44 60 62	-27509435424
STPT(10)	1631931171306759611	0 2 36 38 78 80 120 122 156 158	-712930662
SPT(16)	1631931328085801317	0 16 46 54 60 72 84 94 102 112 124 136 142 150 180 196	156066111044
SPT(13)	1631931377425831477	0 6 24 84 90 144 150 156 210 216 276 294 300	205406141204
SPT(16)	1631931742584056999	0 12 98 114 134 140 144 152 210 218 222 228 248 264 350 362	570564366726
SPT(18)	1631931882057530939	0 14 18 20 54 134 144 158 168 230 240 254 264 344 378 380 384 398	710037840666
SPT(16)	1631931893851338523	0 48 94 100 108 174 226 280 324 378 430 496 504 510 556 604	721831648250