A259710 Describe previous term in binary, then convert to decimal (initial term is 0).

0, 2, 14, 30, 38, 918, 31190, 1261014, 1925823958, 66980978212310, 88736005061423513046, 284201453518322998760440446422, 21227119308677323964491588521405117134126550, 1978879038810329481388510354539283798664092126944649356922961366

Offset

1,2

Links

Kade Robertson, Table of n, a(n) for n = 1..21

Formula

a(n) = base-10(A049064(n)).

Example

E.g., the term after 14 can be obtained by changing 14 to binary 1110_2, then describing in binary as three (11_2) ones and one (1) zero, concatenate these to make 11110_2, then convert back to decimal to obtain 30.

Crossrefs

Cf. A049064, A049190 (initial term is 1).

Sequence in context: A057018 A038341 A075718 * A093794 A294561 A075490

Adjacent sequences: A259707 A259708 A259709 * A259711 A259712 A259713

Keyword

base,easy,nonn

Author

Kade Robertson, Jul 03 2015

Extensions

Offset corrected by Jianing Song, Mar 16 2019

Status

approved