

A109182


Numbers n such that nth and (n+1)th primes have the same sum of their digits squared.


1



293, 2106, 2161, 2763, 3698, 3793, 3795, 3812, 3922, 3959, 3995, 4000, 4205, 4224, 4260, 4728, 4953, 5065, 5283, 5617, 5700, 5751, 5932, 6326, 6333, 6422, 6539, 6623, 7375, 7475, 7501, 7533, 7542, 8306, 8568, 8751, 8777, 8994, 9102, 9259, 9354, 9480
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OFFSET

1,1


COMMENTS

Most of the pairs of successive primes have also the same set of digits, those which the different sets of digits in A109183, first relative n's are 3795,3995,10234,17125,18134,19322,20979.


LINKS

Table of n, a(n) for n=1..42.


EXAMPLE

prime(293)=1913, prime(294)=1931, both have the same sum of digits squared 1^2+9^2+1^2+3^2=1^2+9^2+3^2+1^2=92.


CROSSREFS

Cf. A109183.
Sequence in context: A217182 A109562 A023305 * A241047 A085502 A108828
Adjacent sequences: A109179 A109180 A109181 * A109183 A109184 A109185


KEYWORD

base,nonn


AUTHOR

Zak Seidov, Jun 21 2005


STATUS

approved



