Prime p₀= 1977906407015232277 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 22 68 4 68 18 24 6 30 6 34 6 30 6 24 18 68 4 68 22 (?)
a_n: 0 22 90 94 162 180 204 210 240 246 280 286 316 322 346 364 432 436 504 526
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: 526
derived by truncating larger tuple
Found by: Marcel-Berlin
db: batch=80, k=20, 22 68 4 68 18 24 6 30 6 34

STPT(10)	1977903596967130421	0 2 120 122 138 140 156 158 276 278	-2810048101856
SPT(16)	1977904139618171489	0 14 30 50 62 84 92 134 180 222 230 252 264 284 300 314	-2267397060788
STPT(10)	1977904471716465137	0 2 24 26 42 44 60 62 84 86	-1935298767140
TPT(14)	1977904701230896937	0 2 42 44 120 122 144 146 174 176 252 254 342 344	-1705784335340
STPT(10)	1977905631384216377	0 2 30 32 42 44 54 56 84 86	-775631015900
SPT(22)	1977906407015232241	0 36 58 126 130 198 216 240 246 276 282 316 322 352 358 382 400 468 472 540 562 598	-36
STPT(10)	1977906553326392831	0 2 6 8 18 20 30 32 36 38	146311160554
STPT(10)	1977906579413601971	0 2 36 38 78 80 120 122 156 158	172398369694
STPT(10)	1977906610970779607	0 2 30 32 42 44 54 56 84 86	203955547330
STPT(10)	1977906784981247927	0 2 72 74 102 104 132 134 204 206	377966015650
SPT(16)	1977906869832705173	0 20 26 38 84 116 120 134 150 164 168 200 246 258 264 284	462817472896
STPT(10)	1977906953915992667	0 2 12 14 42 44 72 74 84 86	546900760390