

A259710


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


2



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

1,2


LINKS

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


FORMULA

a(n) = base10(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



