Prime p₀= 1515798405312318679 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 12 6 12 18 36 30 30 16 8 16 8 16 30 30 36 18 12 6 12 (?)
a_n: 0 12 18 30 48 84 114 144 160 168 184 192 208 238 268 304 322 334 340 352
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: 352
Found by: xii5ku
db: batch=78, k=20, 12 6 12 18 36 30 30 16 8 16

STPT(10)	1515796590352543907	0 2 90 92 102 104 114 116 204 206	-1814959774772
SPT(16)	1515796762812629903	0 8 48 60 68 90 126 146 168 188 224 246 254 266 306 314	-1642499688776
SPT(16)	1515797068980170681	0 8 18 60 90 146 158 168 200 210 222 278 308 350 360 368	-1336332147998
STPT(10)	1515797597504485247	0 2 30 32 42 44 54 56 84 86	-807807833432
STPT(10)	1515797938324644641	0 2 6 8 18 20 30 32 36 38	-466987674038
STPT(10)	1515797941847097407	0 2 30 32 72 74 114 116 144 146	-463465221272
STPT(10)	1515798479474724617	0 2 12 14 42 44 72 74 84 86	74162405938
STPT(10)	1515799109060121407	0 2 30 32 42 44 54 56 84 86	703747802728
SPT(16)	1515799116647628361	0 30 40 72 76 112 136 162 196 222 246 282 286 318 328 358	711335309682
SPT(16)	1515799576929750529	0 4 54 112 114 124 174 180 244 250 300 310 312 370 420 424	1171617431850
SPT(16)	1515799850833312553	0 6 18 90 120 164 188 216 218 246 270 314 344 416 428 434	1445520993874