Prime p₀= 218630145553841041 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 40 2 108 60 52 60 18 2 10 26 10 2 18 60 52 60 108 2 40 (?)
a_n: 0 40 42 150 210 262 322 340 342 352 378 388 390 408 468 520 580 688 690 730
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: 730
derived by truncating larger tuple
Found by: Steve Dodd
db: batch=69, k=20, 40 2 108 60 52 60 18 2 10 26

SPT(14)	218630069615351843	0 26 30 44 56 74 116 138 180 198 210 224 228 254	-75938489198
SPT(14)	218630089291252073	0 8 24 26 50 56 78 86 108 114 138 140 156 164	-56262588968
SPT(14)	218630099668494743	0 36 50 168 176 188 230 264 306 318 326 444 458 494	-45885346298
SPT(14)	218630102115070729	0 4 18 40 58 70 72 100 102 114 132 154 168 172	-43438770312
TPT(12)	218630141940203237	0 2 54 56 72 74 102 104 192 194 210 212	-3613637804
SPT(22)	218630145553841029	0 12 52 54 162 222 274 334 352 354 364 390 400 402 420 480 532 592 700 702 742 754	-12
STPT(10)	218630148679222331	0 2 6 8 18 20 30 32 36 38	3125381290
TPT(12)	218630164208403401	0 2 60 62 150 152 156 158 180 182 186 188	18654562360
TPT(12)	218630207386619129	0 2 78 80 138 140 162 164 360 362 390 392	61832778088
SPT(14)	218630213229639209	0 48 62 78 92 102 120 122 140 150 164 180 194 242	67675798168
TPT(12)	218630217928427621	0 2 66 68 108 110 120 122 138 140 180 182	72374586580
SPT(14)	218630228030601403	0 48 66 70 90 106 136 210 240 256 276 280 298 346	82476760362