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A247414 First differences of A024431. 3
1, 4, 2, 10, 3, 23, 8, 54, 9, 117, 11, 245, 14, 504, 18, 1026, 21, 2073, 22, 4168, 24, 8360, 25, 16745, 27, 33517, 28, 67062, 29, 134153, 30, 268336, 32, 536704, 33, 1073441, 35, 2146917, 37, 4293871, 39, 8587781, 40, 17175602, 41, 34351245, 45, 68702535, 47 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

a(n) = A024431(n+1) - A024431(n) = A115409(n+1,n+1).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

PROG

(Haskell)

a247414 n = a247414_list !! n

a247414_list = zipWith (-) (tail a024431_list) a024431_list

CROSSREFS

Cf. A024431, A115409.

Sequence in context: A052915 A130273 A016516 * A138569 A191725 A198326

Adjacent sequences:  A247411 A247412 A247413 * A247415 A247416 A247417

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Sep 16 2014

STATUS

approved

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Last modified March 26 20:59 EDT 2019. Contains 321535 sequences. (Running on oeis4.)