Prime p₀= 1547951787600479473 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 4 20 36 6 40 2 6 22 32 22 6 2 40 6 36 20 4 (?)
a_n: 0 4 24 60 66 106 108 114 136 168 190 196 198 238 244 280 300 304
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 304
Found by: biodoc
db: batch=78, k=18, 4 20 36 6 40 2 6 22 32

SPT(20)	1547950659366826493	0 44 48 104 114 116 126 150 174 260 324 410 434 458 468 470 480 536 540 584	-1128233652980
SPT(16)	1547950852489894267	0 6 46 60 114 126 130 132 154 156 160 172 226 240 280 286	-935110585206
STPT(10)	1547950971869713391	0 2 36 38 78 80 120 122 156 158	-815730766082
SPT(16)	1547951403392204401	0 10 40 76 108 142 160 282 286 408 426 460 492 528 558 568	-384208275072
SPT(16)	1547951589516384809	0 18 54 60 74 80 138 144 164 170 228 234 248 254 290 308	-198084094664
SPT(16)	1547951620833193351	0 6 18 40 42 48 88 102 166 180 220 226 228 250 262 268	-166767286122
STPT(10)	1547952228626894927	0 2 42 44 72 74 102 104 144 146	441026415454
SPT(16)	1547952336895190081	0 8 38 50 66 116 126 150 218 242 252 302 318 330 360 368	549294710608
SPT(16)	1547952651020273917	0 34 72 100 124 156 174 196 240 262 280 312 336 364 402 436	863419794444
SPT(16)	1547952996317461061	0 38 66 80 86 98 186 206 342 362 450 462 468 482 510 548	1208716981588
STPT(10)	1547953206567163601	0 2 6 8 18 20 30 32 36 38	1418966684128