A267348 Decimal equivalents of terms of A266926 interpreted as binary numbers.

0, 1, 2, 6, 54, 3510, 14380470, 241264265751990, 67909853583655146508751957430, 5380372916045726369002105219892285499516304666683458153910, 33773148168338125039096320085837383261496919374684668572527108632210618661283323381212228218472784834977109705977270

Offset

1,3

Comments

For n>1, a(n+1)/a(n) is an integer. Therefore, after 2, a(n) is divisible by 6.

The term a(12) has 925 decimal digits; a(13) has 1850 decimal digits. - Michael De Vlieger, Jan 13 2016

Links

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

Mathematica

a = {0, 1}; Do[AppendTo[a, FromDigits@ Flatten@ Map[IntegerDigits@ # &, If[n < 2, Reverse@ a, a]]], {n, 9}]; FromDigits[IntegerDigits@ #, 2] & /@ a (* Michael De Vlieger, Jan 13 2016 *)

Crossrefs

Cf. A266926.

Sequence in context: A279454 A306021 A122593 * A264610 A153450 A179389

Adjacent sequences: A267345 A267346 A267347 * A267349 A267350 A267351

Keyword

nonn,easy

Author

Giovanni Teofilatto, Jan 13 2016

Extensions

More terms from Michael De Vlieger, Jan 13 2016

Status

approved