A265906 a(n) = A153880(A265905(n)); also the first differences of A265905.

2, 8, 38, 242, 1688, 13238, 121442, 1212968, 13211798, 160076282, 2080120448, 28952201678, 436718865962, 6985509376688, 118290516617198, 2137197890239202, 40600129761103688, 809755594446845558, 17050115848925513762, 375062123907891088808, 8608573107134508912038, 207014026157802769184402, 5174962975935097945559048

Offset

1,1

Comments

In factorial base (A007623) these numbers are just like those in A265905, but shifted once left, with an extra zero appended:

10, 110, 1210, 20010, 220110, 2421210, 30040010, 330440110, 3635241210, 40111110010, 441222210110, 4853444311210, 50188010430010, <the first term with digit-value "10">, ...

Links

Antti Karttunen, Table of n, a(n) for n = 1..120

Index entries for sequences related to factorial base representation

Formula

a(n) = A153880(A265905(n)).

a(n) = A265905(n+1) - A265905(n).

Prog

(Scheme, two variants)
(define (A265906 n) (A153880 (A265905 n)))
(define (A265906 n) (- (A265905 (+ 1 n)) (A265905 n)))

Crossrefs

Row 2 of A275950.

First differences of A265905.

Cf. A007623, A153880.

Sequence in context: A191016 A293839 A355396 * A060389 A318917 A203122

Adjacent sequences: A265903 A265904 A265905 * A265907 A265908 A265909

Keyword

nonn,base

Author

Antti Karttunen, Dec 20 2015

Status

approved