A261879 Decimal expansion of BesselI(3,2).

2, 1, 2, 7, 3, 9, 9, 5, 9, 2, 3, 9, 8, 5, 2, 6, 5, 5, 2, 7, 2, 3, 5, 4, 3, 9, 3, 3, 7, 5, 9, 3, 2, 0, 3, 7, 2, 9, 1, 7, 5, 2, 2, 7, 2, 9, 1, 5, 6, 9, 1, 8, 3, 3, 2, 5, 5, 1, 8, 4, 4, 5, 0, 4, 9, 7, 0, 2, 4, 4, 2, 6, 1, 4, 0, 7, 3, 0, 8, 6, 9, 8, 8, 9, 3, 3, 2, 2, 6, 5, 6, 6, 9, 7, 1, 4, 9, 7, 7, 7, 4, 4, 0, 7, 8

Offset

0,1

Links

G. C. Greubel, Table of n, a(n) for n = 0..2500

Eric Weisstein's MathWorld, Modified Bessel Function of the First Kind

Formula

Sum_{k>=1} 1/((k - 2)!*(k + 1)!).

Also S(2) - S(1), using Peter Bala's notation in A229020.

Example

0.212739959239852655272354393375932037291752272915691833255184450497...

Mathematica

RealDigits[BesselI[3, 2], 10, 105][[1]]

Prog

(PARI) besseli(3, 2) \\ Altug Alkan, Nov 19 2015

Crossrefs

Cf. A070910 (BesselI(0,2)), A096789 (BesselI(1,2)), A229020 (BesselI(2,2)).

Sequence in context: A224609 A278710 A011241 * A167480 A241738 A021051

Adjacent sequences: A261876 A261877 A261878 * A261880 A261881 A261882

Keyword

nonn,cons,easy

Author

Jean-François Alcover, Nov 19 2015

Status

approved