Prime p₀= 866186902361110139 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 12 56 16 48 2 34 24 26 16 26 24 34 2 48 16 56 12 (?)
a_n: 0 12 68 84 132 134 168 192 218 234 260 284 318 320 368 384 440 452
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: 452
Found by: [AF>Libristes] Dudumomo
db: batch=73, k=18, 12 56 16 48 2 34 24 26 16

STPT(10)	866186515122652481	0 2 6 8 18 20 30 32 36 38	-387238457658
SPT(16)	866186517943276961	0 18 32 90 126 132 168 186 242 260 296 302 338 396 410 428	-384417833178
STPT(10)	866186629039993901	0 2 6 8 48 50 90 92 96 98	-273321116238
SPT(16)	866186742772864399	0 18 28 40 54 60 78 82 90 94 112 118 132 144 154 172	-159588245740
SPT(16)	866186816047859507	0 42 50 62 84 92 104 110 126 132 144 152 174 186 194 236	-86313250632
SPT(16)	866186825998843031	0 18 30 56 78 158 170 200 348 378 390 470 492 518 530 548	-76362267108
TPT(14)	866187306365235287	0 2 42 44 54 56 102 104 144 146 210 212 252 254	404004125148
STPT(10)	866187329884523597	0 2 30 32 42 44 54 56 84 86	427523413458
TPT(14)	866187352931060429	0 2 12 14 42 44 78 80 150 152 168 170 192 194	450569950290
STPT(10)	866187740900761187	0 2 30 32 42 44 54 56 84 86	838539651048
SPT(16)	866188025312340301	0 70 120 126 138 208 250 256 282 288 330 400 412 418 468 538	1122951230162