Prime p₀= 745256405070821927 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 6 38 46 50 16 66 18 32 48 16 48 32 18 66 16 50 46 38 6 (?)
a_n: 0 6 44 90 140 156 222 240 272 320 336 384 416 434 500 516 566 612 650 656
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: 656
Found by: Theadalus
db: batch=73, k=20, 6 38 46 50 16 66 18 32 48 16

SPT(16)	745255418736726719	0 44 152 182 194 222 230 240 362 372 380 408 420 450 558 602	-986334095208
SPT(16)	745255465298901061	0 36 40 102 112 136 138 150 208 220 222 246 256 318 322 358	-939771920866
STPT(10)	745255482092460707	0 2 30 32 42 44 54 56 84 86	-922978361220
SPT(16)	745255497843743941	0 10 18 40 48 60 96 106 150 160 196 208 216 238 246 256	-907227077986
SPT(16)	745255544454613453	0 18 24 30 46 108 126 148 156 178 196 258 274 280 286 304	-860616208474
STPT(10)	745256174514903629	0 2 42 44 90 92 138 140 180 182	-230555918298
STPT(10)	745256416159443437	0 2 30 32 42 44 54 56 84 86	11088621510
SPT(16)	745256482382028971	0 2 18 32 60 72 78 102 158 182 188 200 228 242 258 260	77311207044
STPT(10)	745256706661848257	0 2 30 32 60 62 90 92 120 122	301591026330
STPT(10)	745256716375071359	0 2 18 20 30 32 42 44 60 62	311304249432
TPT(14)	745256913813814811	0 2 6 8 36 38 78 80 90 92 168 170 210 212	508742992884