Prime p₀= 1921331861506475083 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 28 2 10 26 4 68 58 14 58 68 4 26 10 2 28 (?)
a_n: 0 28 30 40 66 70 138 196 210 268 336 340 366 376 378 406
All 16 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 406
Found by: JZD
db: batch=80, k=16, 28 2 10 26 4 68 58 14

SPT(16)	1921330202679146801	0 78 92 126 146 150 168 192 236 260 278 282 302 336 350 428	-1658827328282
STPT(10)	1921330246983587981	0 2 30 32 78 80 126 128 156 158	-1614522887102
STPT(10)	1921330264359273797	0 2 12 14 42 44 72 74 84 86	-1597147201286
SPT(16)	1921330994394806191	0 18 52 58 72 136 138 148 270 280 282 346 360 366 400 418	-867111668892
STPT(10)	1921331074511924027	0 2 30 32 42 44 54 56 84 86	-786994551056
SPT(16)	1921331578933521983	0 8 26 44 50 60 114 140 174 200 254 264 270 288 306 314	-282572953100
TPT(14)	1921331915129570861	0 2 78 80 108 110 126 128 150 152 156 158 168 170	53623095778
STPT(10)	1921332504508287119	0 2 18 20 30 32 42 44 60 62	643001812036
TPT(14)	1921332534969211757	0 2 30 32 120 122 180 182 222 224 240 242 330 332	673462736674
STPT(10)	1921332561617301587	0 2 42 44 72 74 102 104 144 146	700110826504
SPT(20)	1921332631188039007	0 22 94 120 124 130 144 154 196 324 472 600 642 652 666 672 676 702 774 796	769681563924