A252994 Multiples of 26.

0, 26, 52, 78, 104, 130, 156, 182, 208, 234, 260, 286, 312, 338, 364, 390, 416, 442, 468, 494, 520, 546, 572, 598, 624, 650, 676, 702, 728, 754, 780, 806, 832, 858, 884, 910, 936, 962, 988, 1014, 1040, 1066, 1092, 1118, 1144, 1170, 1196, 1222, 1248, 1274, 1300, 1326, 1352, 1378

Offset: 0

Author

Alonso del Arte, Dec 25 2014

Keywords

• nonn
• easy

References

• Richard A. Mollin, Codes: The Guide to Secrecy From Ancient to Modern Times. Chapman and Hall/CRC (2005): 12.
• Anne L. Young, Mathematical Ciphers: From Caesar to RSA. American Mathematical Society (2006): 23.

Links

• Index entries for linear recurrences with constant coefficients, signature (2,-1).

Crossrefs

Cf. A005843, A008595, A008607, A244633.

Programs

Mathematica

26 Range[0, 51]

PARI

a(n)=26*n \\ Georg Fischer, Feb 25 2019

Formula

a(n) = 26*n.

a(n) = 2*a(n-1) - a(n-2).

G.f.: 26*x/(1-x)^2. - Georg Fischer, Feb 25 2019

From Elmo R. Oliveira, Apr 08 2025: (Start)

E.g.f.: 26*x*exp(x).

a(n) = A005843(A008595(n)). (End)