Prime p₀= 1507643087664442973 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 30 24 12 24 6 60 50 30 28 2 28 30 50 60 6 24 12 24 30 (?)
a_n: 0 30 54 66 90 96 156 206 236 264 266 294 324 374 434 440 464 476 500 530
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: 530
Found by: xii5ku
db: batch=78, k=20, 30 24 12 24 6 60 50 30 28 2

STPT(10)	1507641788484119789	0 2 42 44 90 92 138 140 180 182	-1299180323184
SPT(16)	1507642200138606211	0 12 16 28 40 78 102 168 250 316 340 378 390 402 406 418	-887525836762
SPT(18)	1507642473380368411	0 16 22 42 66 78 88 100 102 196 198 210 220 232 256 276 282 298	-614284074562
SPT(16)	1507642474830759539	0 2 20 62 72 114 122 132 182 192 200 242 252 294 312 314	-612833683434
SPT(16)	1507642602014413289	0 14 24 132 140 144 164 174 200 210 230 234 242 350 360 374	-485650029684
SPT(16)	1507642620445187459	0 8 38 50 78 80 84 102 140 158 162 164 192 204 234 242	-467219255514
STPT(10)	1507643747961538709	0 2 18 20 30 32 42 44 60 62	660297095736
STPT(10)	1507643845275138689	0 2 18 20 30 32 42 44 60 62	757610695716
STPT(10)	1507643902907346509	0 2 42 44 90 92 138 140 180 182	815242903536
TPT(14)	1507643947726597619	0 2 12 14 42 44 72 74 78 80 108 110 168 170	860062154646
STPT(10)	1507644263575961837	0 2 30 32 42 44 54 56 84 86	1175911518864