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A155873 This sequence of prime numbers reproduces itself (without its "tail") when the last digit of each term is erased. 0

%I #11 Feb 01 2022 07:11:05

%S 2,3,5,7,23,37,59,73,233,373,593,739,2339,3733,5939,7393,23399,37337,

%T 59393,73939,233993,373379,593933,739391,2339933,3733799,5939333,

%U 7393913,23399339,37337999,59393339,73939133

%N This sequence of prime numbers reproduces itself (without its "tail") when the last digit of each term is erased.

%C Sequence computed by Mensanator. The "tail" of the sequence is made from its last four terms. This is the longest possible such sequence.

%e Erasing the last digit of every term of 2 3 5 7 23 37 59 73 leaves 2 3 5 7, which is 2 3 5 7 23 37 59 73 without its "tail" (the last four integers).

%Y Cf. A024770 (right-truncatable primes: every prefix is prime).

%K base,easy,fini,nonn

%O 1,1

%A _Eric Angelini_, Jan 29 2009

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)