Prime p₀= 1954981404459268811 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 48 20 70 12 6 12 8 36 4 36 8 12 6 12 70 20 48 (?)
a_n: 0 48 68 138 150 156 168 176 212 216 252 260 272 278 290 360 380 428
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: 428
Found by: CoolAtchOk
db: batch=80, k=18, 48 20 70 12 6 12 8 36 4

SPT(16)	1954979656434566473	0 40 64 90 136 138 166 186 238 258 286 288 334 360 384 424	-1748024702338
STPT(10)	1954979785698358421	0 2 30 32 60 62 90 92 120 122	-1618760910390
SPT(16)	1954979836414318451	0 2 8 30 56 66 78 96 152 170 182 192 218 240 246 248	-1568044950360
SPT(16)	1954979918905490887	0 22 40 54 64 114 130 132 154 156 172 222 232 246 264 286	-1485553777924
TPT(14)	1954980850536206741	0 2 66 68 78 80 120 122 138 140 180 182 210 212	-553923062070
TPT(14)	1954981027060329377	0 2 30 32 90 92 102 104 174 176 180 182 282 284	-377398939434
STPT(10)	1954981872476902889	0 2 42 44 90 92 138 140 180 182	468017634078
SPT(16)	1954982466745472069	0 2 8 24 54 110 138 140 162 164 192 248 278 294 300 302	1062286203258
SPT(16)	1954982621822211383	0 30 56 68 110 150 156 176 240 260 266 306 348 360 386 416	1217362942572
SPT(16)	1954982744453376763	0 6 30 34 46 76 144 156 184 196 264 294 306 310 334 340	1339994107952
SPT(20)	1954982960168129627	0 30 86 110 140 186 204 236 246 326 414 494 504 536 554 600 630 654 710 740	1555708860816