|
|
|
|
#15 by Joerg Arndt at Sun Jun 18 02:07:00 EDT 2017
|
|
|
|
#14 by Michel Marcus at Sun Jun 18 00:24:22 EDT 2017
|
|
|
|
#13 by Jon E. Schoenfield at Sat Jun 17 18:51:46 EDT 2017
|
|
|
|
#12 by Jon E. Schoenfield at Sat Jun 17 18:51:42 EDT 2017
|
| FORMULA
|
a(n) = Sum_{1<=k<==1..n} A211399(n,k)*2^(k-1)._ ). - _Philippe Deléham_, Feb 12 2013
G.f.: 1 + 2*Sum_{n = 1..inf} a(n)*x^n = 1/(1-2*x/(1-x/(1-2*3*x/(1-2*x/(1-2*5*x/(1-3*x/(1-2*7*x/(1-4*x/(1-...))))))))) (continued fraction). _). - _Philippe Deléham_, Feb 12 2013
|
| AUTHOR
|
_Wolfdieter Lang_ _, Sep 15 2008
|
| STATUS
|
approved
editing
|
|
|
|
#11 by Michael Somos at Sun Jan 11 02:26:41 EST 2015
|
|
|
|
#10 by Michael Somos at Sun Jan 11 02:26:31 EST 2015
|
| FORMULA
|
G.f.: 1 + 2*Sum_{n = 1..inf} a(n)*x^n = 1/(1-2*x/(1-x/(1-2*3*x/(1-2*x/(1-2*5*x/(1-3*x/(1-2*7*x/(1-4*x/(1-...(-...))))))))) (continued fraction). Philippe Deléham, Feb 12 2013
|
| STATUS
|
approved
editing
|
|
|
Discussion
|
Sun Jan 11
| 02:26
| Michael Somos: Closed parens.
|
|
|
|
#9 by N. J. A. Sloane at Fri Feb 22 14:39:26 EST 2013
|
| FORMULA
|
a(n) = Sum_{1<=k<=n} A211399(n,k)*2^(k-1)._ DELEHAM Philippe Deléham_, Feb 12 2013
G.f.: 1 + 2*Sum_{n = 1..inf} a(n)*x^n = 1/(1-2*x/(1-x/(1-2*3*x/(1-2*x/(1-2*5*x/(1-3*x/(1-2*7*x/(1-4*x/(1-...(continued fraction). _DELEHAM Philippe Deléham_, Feb 12 2013
|
|
|
Discussion
|
Fri Feb 22
| 14:39
| OEIS Server: https://oeis.org/edit/global/1863
|
|
|
|
#8 by T. D. Noe at Mon Feb 11 22:28:04 EST 2013
|
|
|
|
#7 by T. D. Noe at Mon Feb 11 22:27:59 EST 2013
|
| FORMULA
|
a(n)=sum(A142963(n,m),) = Sum_{m=0..n-1} A142963(n,m).
a(n) = Sum_{k, 1<=k<=n}} A211399(n,k)*2^(k-1)._ DELEHAM Philippe_, Feb 12 2013
G.f.: 1+ + 2*Sum_{n = 1..inf}} a(n)*x^n = 1/(1-2*x/(1-x/(1-2*3*x/(1-2*x/(1-2*5*x/(1-3*x/(1-2*7*x/(1-4*x/(1-...(continued fraction). DELEHAM Philippe, Feb 12 2013
|
| CROSSREFS
|
Cf. A142963, A211399.
|
| STATUS
|
proposed
editing
|
|
|
|
#6 by DELEHAM Philippe at Mon Feb 11 20:50:19 EST 2013
|
|
|
|