A182521 Numbers n such that A182481(n)=1 and there is not a representation n=d_1*d_2 with d_2>1, such that A182481(d_1)=d_2.

1, 2, 3, 5, 7, 10, 17, 23, 25, 45, 47, 77, 87, 95, 103, 107, 137, 143, 175, 215, 247, 283, 287, 313, 347, 355, 373, 385, 397, 425, 443, 455, 467, 565, 577, 593, 637, 653, 667, 703, 737, 773, 775, 787, 850, 907, 913, 917, 943, 975, 1033, 1075, 1117, 1127, 1130

Offset: 1

Author

Vladimir Shevelev, May 03 2012

Keywords

• nonn

Comments

Or the numbers n such that 6*n-1 is lesser of twin primes which occurs in A182482 only once.

All terms of A060212 are in the sequence.

Links

• Ray Chandler, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A182481, A182482, A182483, A182513, A060212.

Formula

Numbers n for which A182483(A182513(n))/n = A182481(n) = 1.

Extensions

Insert 1 and more terms from Ray Chandler, Sep 18 2019