A246784 Numbers n such that both n and n+1 are in the sequence A246782.

5, 6, 9, 10, 14, 22, 28, 29, 45, 216, 714573709895

Offset

1,1

Comments

Numbers n such that A182134(n) = A182134(n+1) = 2.

n = 1475067052906945 is a large term in this sequence.

a(12) > 10^12. - Robert Price, Nov 15 2014

Links

Table of n, a(n) for n=1..11.

Crossrefs

Cf. A000040, A182134, A246782.

Sequence in context: A284936 A188191 A117827 * A134736 A285505 A334815

Adjacent sequences: A246781 A246782 A246783 * A246785 A246786 A246787

Keyword

nonn,more,hard

Author

Farideh Firoozbakht, Oct 23 2014

Extensions

a(11) from Robert Price, Nov 15 2014

Status

approved