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A371499 Decimal expansion of Sum_{k>=0} 1/(k^2)!. 1
2, 0, 4, 1, 6, 6, 9, 4, 2, 2, 3, 9, 8, 6, 3, 6, 8, 6, 0, 0, 2, 9, 0, 5, 5, 8, 6, 0, 7, 2, 1, 0, 6, 6, 2, 9, 1, 1, 7, 5, 3, 7, 9, 7, 4, 8, 0, 0, 7, 6, 6, 3, 5, 1, 3, 3, 1, 5, 4, 8, 9, 1, 4, 5, 6, 7, 4, 8, 4, 6, 8, 0, 2, 0, 0, 4, 7, 6, 1, 8, 9, 8, 3, 9, 9, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
(This constant) - (constant in A371498) = 2.00000551146384...
EXAMPLE
2.04166942239863686002905586072...
MATHEMATICA
s[x_] := s[x] = Sum[x^n/((n^2)!), {n, 0, Infinity}]
First[RealDigits[N[s[1], 100]]]
PROG
(PARI) suminf(k=0, 1/(k^2)!) \\ Hugo Pfoertner, Mar 30 2024
CROSSREFS
Cf. A371498.
Sequence in context: A008797 A239004 A168036 * A217930 A305371 A355018
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Mar 30 2024
STATUS
approved

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Last modified June 20 23:53 EDT 2024. Contains 373535 sequences. (Running on oeis4.)