OFFSET
1,1
EXAMPLE
a(1) = A274792(8) = 2640138520272677 starts a 16-tuple of consecutive primes: 2640138520272677+s for s in {0, 2, 12, 14, 30, 32, 54, 56, 90, 92, 114, 116, 132, 134, 144, 146} that are symmetric about 2640138520272677+73 and form 8 pairs of twin primes.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Tomáš Brada, Natalia Makarova Jun 05 2020
STATUS
approved