A260123 The second infinite sequence of positive integers such that a(n) = A037445(a(1)+a(2)+...+a(n)) for all n>=1 (see also A260085).

1, 2, 2, 2, 2, 2, 4, 2, 4, 2, 4, 2, 2, 4, 4, 2, 4, 2, 4, 2, 4, 2, 2, 4, 4, 2, 2, 4, 2, 2, 2, 4, 4, 4, 2, 8, 2, 4, 4, 4, 2, 4, 2, 8, 2, 2, 4, 4, 2, 2, 4, 2, 8, 2, 4, 2, 4, 2, 4, 4, 8, 2, 4, 4, 4, 4, 4, 4, 2, 8, 2, 4, 2, 4, 4, 8, 2, 4, 2, 4, 2, 2, 4, 4, 2, 2, 4, 2, 8, 4, 4, 2, 8, 2, 4, 4, 4, 2, 4, 2, 8, 2, 2, 8

Offset

1,2

Comments

The second after A260085 infinitary analog of A259935 (see comment there). Using Guba's method (2015) one can prove that such an infinite sequence exists.

All terms are powers of 2.

Links

Table of n, a(n) for n=1..104.

Crossrefs

Cf. A037445, A259935, A260085.

Sequence in context: A086876 A373303 A066691 * A319411 A164296 A319817

Adjacent sequences: A260120 A260121 A260122 * A260124 A260125 A260126

Keyword

nonn

Author

Vladimir Shevelev, Jul 17 2015

Status

approved