Prime p₀= 2215274762002067317 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 24 16 56 40 30 54 24 26 42 22 42 26 24 54 30 40 56 16 24 (?)
a_n: 0 24 40 96 136 166 220 244 270 312 334 376 402 426 480 510 550 606 622 646
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: 646
Found by: fzs600
db: batch=81, k=20, 24 16 56 40 30 54 24 26 42 22

SPT(16)	2215272620314921133	0 36 68 114 134 200 218 228 236 246 264 330 350 396 428 464	-2141687146184
SPT(16)	2215272873619278911	0 6 18 32 50 96 116 126 152 162 182 228 246 260 272 278	-1888382788406
SPT(16)	2215272883196067217	0 34 40 52 102 106 120 124 132 136 150 154 204 216 222 256	-1878806000100
SPT(16)	2215273193005756139	0 18 50 84 90 114 128 144 254 270 284 308 314 348 380 398	-1568996311178
TPT(14)	2215274168951634179	0 2 30 32 42 44 48 50 72 74 132 134 138 140	-593050433138
SPT(16)	2215274286327375739	0 22 34 42 90 102 138 144 148 154 190 202 250 258 270 292	-475674691578
STPT(10)	2215274863008461669	0 2 18 20 30 32 42 44 60 62	101006394352
TPT(14)	2215274904387358991	0 2 48 50 156 158 240 242 300 302 366 368 378 380	142385291674
STPT(10)	2215275333117418511	0 2 36 38 78 80 120 122 156 158	571115351194
STPT(10)	2215275433224199397	0 2 72 74 102 104 132 134 204 206	671222132080
STPT(10)	2215275766072279331	0 2 36 38 78 80 120 122 156 158	1004070212014