AUTHOR
_Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), _, Mar 13 2009
_Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), _, Mar 13 2009
Missing terms inserted by _R. J. Mathar (mathar(AT)strw.leidenuniv.nl), _, Mar 15 2009
proposed
approved
Prime numbers p such that first digit of p = largest digit of p - smallest digit of p.
101, 401, 487, 503, 601, 617, 701, 907, 2011, 2113, 2131, 2213, 2243, 2311, 2423, 3001, 3011, 3023, 3203, 3253, 3301, 3413, 3463, 3643, 4001, 4003, 4013, 4021, 4153, 4201, 4337, 4357, 4373, 4451, 4513, 4637, 4673, 4733, 4787, 4877, 5003, 5011, 5021
1,1
101(1=1-0), 401(4=4-0), 487(4=8-4)
Cf. A000040.
nonn
Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Mar 13 2009
Missing terms inserted by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 15 2009
approved